Unable to run Signal

[reagentoo]

Only the next console output without application's window/gui:

$ flatpak run org.signal.Signal 
Debug: Using password store: basic
Debug: Will run signal with the following arguments: --password-store=basic --enable-wayland-ime --wayland-text-input-version=3
Debug: Additionally, user gave: 
Set Windows Application User Model ID (AUMID) { AUMID: 'org.whispersystems.signal-desktop' }
NODE_ENV production
NODE_CONFIG_DIR /app/Signal/resources/app.asar/config
NODE_CONFIG {}
ALLOW_CONFIG_MUTATIONS undefined
HOSTNAME localhost.localdomain
NODE_APP_INSTANCE undefined
SUPPRESS_NO_CONFIG_WARNING undefined
SIGNAL_ENABLE_HTTP undefined
userData: /home/user/.var/app/org.signal.Signal/config/Signal
config/get: Successfully read user config file
config/get: Successfully read ephemeral config file
making app single instance
LaunchProcess: failed to execvp:
xdg-settings
LaunchProcess: failed to execvp:
xdg-settings

(signal-desktop:2): GLib-GIO-WARNING **: 00:24:37.882: Can't find module 'dconf' specified in GSETTINGS_BACKEND
{"level":30,"time":"2025-03-03T21:24:37.995Z","msg":"got fast localeOverride setting null"}
{"level":30,"time":"2025-03-03T21:24:37.996Z","msg":"app.ready: hour cycle preference: UnknownPreference"}
{"level":30,"time":"2025-03-03T21:24:37.996Z","msg":"app.ready: preferred system locales: ru-RU, ru"}
{"level":30,"time":"2025-03-03T21:24:37.996Z","msg":"locale: Supported locales: af-ZA, ar, az-AZ, bg-BG, bn-BD, bs-BA, ca, cs, da, de, el, en, es, et-EE, eu, fa-IR, fi, fr, ga-IE, gl-ES, gu-IN, he, hi-IN, hr-HR, hu, id, it, ja, ka-GE, kk-KZ, km-KH, kn-IN, ko, ky-KG, lt-LT, lv-LV, mk-MK, ml-IN, mr-IN, ms, my, nb, nl, pa-IN, pl, pt-BR, pt-PT, ro-RO, ru, sk-SK, sl-SI, sq-AL, sr, sv, sw, ta-IN, te-IN, th, tl-PH, tr, ug, uk-UA, ur, vi, yue, zh-CN, zh-HK, zh-Hant"}
{"level":30,"time":"2025-03-03T21:24:37.996Z","msg":"locale: Preferred locales: ru-RU, ru"}
{"level":30,"time":"2025-03-03T21:24:37.996Z","msg":"locale: Locale Override: null"}
{"level":30,"time":"2025-03-03T21:24:37.997Z","msg":"locale: Matched locale: ru"}
{"level":40,"time":"2025-03-03T21:24:38.022Z","msg":"intl.onWarn [@formatjs/intl] \"defaultRichTextElements\" was specified but \"message\" was not pre-compiled. \nPlease consider using \"@formatjs/cli\" to pre-compile your messages for performance.\nFor more details see https://formatjs.io/docs/getting-started/message-distribution"}
{"level":30,"time":"2025-03-03T21:24:38.023Z","msg":"locale: Text info direction for ru: ltr"}
{"level":30,"time":"2025-03-03T21:24:38.023Z","msg":"getSQLKey: using legacy key"}
{"level":30,"time":"2025-03-03T21:24:38.023Z","msg":"getSystemTraySetting got value DoNotUseSystemTray"}
{"level":30,"time":"2025-03-03T21:24:38.023Z","msg":"getSystemTraySetting returning DoNotUseSystemTray"}
{"level":30,"time":"2025-03-03T21:24:38.024Z","msg":"app ready"}
{"level":30,"time":"2025-03-03T21:24:38.024Z","msg":"starting version 7.44.0"}
{"level":30,"time":"2025-03-03T21:24:38.024Z","msg":"media access status [object Undefined] [object Undefined]"}
{"level":30,"time":"2025-03-03T21:24:38.026Z","msg":"got fast theme-setting value system"}
{"level":30,"time":"2025-03-03T21:24:38.035Z","msg":"got fast theme-setting value system"}
{"level":30,"time":"2025-03-03T21:24:38.035Z","msg":"got fast spellcheck setting true"}
{"level":30,"time":"2025-03-03T21:24:38.035Z","msg":"Initializing BrowserWindow config: {\"show\":false,\"width\":800,\"height\":610,\"minWidth\":300,\"minHeight\":200,\"autoHideMenuBar\":false,\"titleBarStyle\":\"default\",\"backgroundColor\":\"#121212\",\"webPreferences\":{\"devTools\":false,\"spellcheck\":true,\"enableBlinkFeatures\":\"CSSPseudoDir,CSSLogical\",\"enablePreferredSizeMode\":true,\"nodeIntegration\":false,\"nodeIntegrationInWorker\":false,\"sandbox\":false,\"contextIsolation\":true,\"preload\":\"[REDACTED]/preload.wrapper.js\",\"backgroundThrottling\":true,\"disableBlinkFeatures\":\"Accelerated2dCanvas,AcceleratedSmallCanvases\"},\"icon\":\"[REDACTED]/images/signal-logo-desktop-linux.png\"}"}
{"level":30,"time":"2025-03-03T21:24:38.070Z","msg":"spellcheck: user locales: [\"ru-RU\",\"ru\"]"}
{"level":30,"time":"2025-03-03T21:24:38.070Z","msg":"spellcheck: available spellchecker languages: [\"af\",\"bg\",\"ca\",\"cs\",\"cy\",\"da\",\"de\",\"de-DE\",\"el\",\"en\",\"en-AU\",\"en-CA\",\"en-GB\",\"en-GB-oxendict\",\"en-US\",\"es\",\"es-419\",\"es-AR\",\"es-ES\",\"es-MX\",\"es-US\",\"et\",\"fa\",\"fo\",\"fr\",\"fr-FR\",\"he\",\"hi\",\"hr\",\"hu\",\"hy\",\"id\",\"it\",\"it-IT\",\"ko\",\"lt\",\"lv\",\"nb\",\"nl\",\"pl\",\"pt\",\"pt-BR\",\"pt-PT\",\"ro\",\"ru\",\"sh\",\"sk\",\"sl\",\"sq\",\"sr\",\"sv\",\"ta\",\"tg\",\"tr\",\"uk\",\"vi\"]"}
{"level":30,"time":"2025-03-03T21:24:38.070Z","msg":"spellcheck: setting languages to: [\"ru\",\"ru\"]"}
{"level":40,"time":"2025-03-03T21:24:38.091Z","msg":"MainSQL: Database log code=283: recovered 806 frames from WAL file [REDACTED]/sql/db.sqlite-wal"}
{"level":30,"time":"2025-03-03T21:24:38.091Z","msg":"MainSQL: updateSchema:\n  Current user_version: 1320;\n  Most recent db schema: 1320;\n  SQLite version: 3.46.1;\n  SQLCipher version: 4.6.1 community;\n  (deprecated) schema_version: 535;\n"}
{"level":30,"time":"2025-03-03T21:24:38.373Z","msg":"got fast theme-setting value system"}
{"level":30,"time":"2025-03-03T21:24:38.853Z","msg":"got fast spellcheck setting true"}
{"level":30,"time":"2025-03-03T21:24:38.857Z","msg":"System tray service: created"}
{"level":30,"time":"2025-03-03T21:24:38.857Z","msg":"System tray service: updating main window. Previously, there was not a window, and now there is"}
{"level":30,"time":"2025-03-03T21:24:38.857Z","msg":"System tray service: rendering no tray"}
{"level":30,"time":"2025-03-03T21:24:38.857Z","msg":"Begin ensuring permissions"}
{"level":30,"time":"2025-03-03T21:24:38.858Z","msg":"Ensuring file permissions for 4 files"}
{"level":30,"time":"2025-03-03T21:24:38.858Z","msg":"Finish ensuring permissions in 1ms"}
{"level":30,"time":"2025-03-03T21:24:38.907Z","msg":"updater/start: Updates disabled - not starting new version checks"}
{"level":30,"time":"2025-03-03T21:24:38.918Z","msg":"Prevent display sleep service: allowing display sleep"}
{"level":30,"time":"2025-03-03T21:24:38.918Z","msg":"Background throttling enabled because no call is active"}
{"level":50,"time":"2025-03-03T21:25:08.068Z","msg":"spellcheck: dictionary download failure: ru"}