How to get access.log and error.log out of the container

[RaMoN877]

Hi all,
sorry for this, I am sure well treated, question, but after 3 evenings with countess blogs, videos and tutorials/ posts I did not get any kind of progress.
I use nginx proxy manager in docker compose (latest image from this side). I would like to get the logs out of the container to use them for a fail2ban addition (different container).
I know, that under /path/to/nginx-volume/logs there are files like fallback_access.log and fallback_error.log as well as proxy_host1_acces.log and the according error.log file. These however show some entries but (as far as I know, they should be updated, whenever nginx discovers a access try or so) they are not up to date and refreshing does not show any new entries, even if I provoke some myself.
I changed the log_format section in the nginx.conf file in the container with no change in the logging. Also I discovered that in the container under /etc/nginx, there is the nginx.conf file and the nginx.conf.default file (in which I found the log_frame section commented out. The nginx.conf file looks not at all like in the tutorials, however the .conf.default does.
Here is the nginx.conf file:

# run nginx in foreground
daemon off;
pid /run/nginx/nginx.pid;
user npm;

# Set number of worker processes automatically based on number of CPU cores.
worker_processes auto;

# Enables the use of JIT for regular expressions to speed-up their processing.
pcre_jit on;

error_log /data/logs/fallback_error.log warn;

# Includes files with directives to load dynamic modules.
include /etc/nginx/modules/*.conf;

# Custom
include /data/nginx/custom/root_top[.]conf;

events {
        include /data/nginx/custom/events[.]conf;
}

http {
        include                       /etc/nginx/mime.types;
        default_type                  application/octet-stream;
        sendfile                      on;
        server_tokens                 off;
        tcp_nopush                    on;
        tcp_nodelay                   on;
        client_body_temp_path         /tmp/nginx/body 1 2;
        keepalive_timeout             90s;
        proxy_connect_timeout         90s;
        proxy_send_timeout            90s;
        proxy_read_timeout            90s;
        ssl_prefer_server_ciphers     on;
        gzip                          on;
        proxy_ignore_client_abort     off;
        client_max_body_size          2000m;
        server_names_hash_bucket_size 1024;
        proxy_http_version            1.1;
        proxy_set_header              X-Forwarded-Scheme $scheme;
        proxy_set_header              X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header              Accept-Encoding "";
        proxy_cache                   off;
        proxy_cache_path              /var/lib/nginx/cache/public  levels=1:2 keys_zone=public-cache:30m max_size=192m;
        proxy_cache_path              /var/lib/nginx/cache/private levels=1:2 keys_zone=private-cache:5m max_size=1024m;

        # Log format and fallback log file
        include /etc/nginx/conf.d/include/log.conf;

        # Dynamically generated resolvers file
        include /etc/nginx/conf.d/include/resolvers.conf;

        # Default upstream scheme
        map $host $forward_scheme {
                default http;
        }

        # Real IP Determination

        # Local subnets:
        set_real_ip_from 10.0.0.0/8;
        set_real_ip_from 172.16.0.0/12; # Includes Docker subnet
        set_real_ip_from 192.168.0.0/16;
        # NPM generated CDN ip ranges:
        include conf.d/include/ip_ranges.conf;
        # always put the following 2 lines after ip subnets:
        real_ip_header X-Real-IP;
        real_ip_recursive on;

        # Custom
        include /data/nginx/custom/http_top[.]conf;

        # Files generated by NPM
        include /etc/nginx/conf.d/*.conf;
        include /data/nginx/default_host/*.conf;
        include /data/nginx/proxy_host/*.conf;
        include /data/nginx/redirection_host/*.conf;
        include /data/nginx/dead_host/*.conf;
        include /data/nginx/temp/*.conf;

        # Custom
        include /data/nginx/custom/http[.]conf;
}

stream {
        # Files generated by NPM
        include /data/nginx/stream/*.conf;

        # Custom
        include /data/nginx/custom/stream[.]conf;
}

# Custom
include /data/nginx/custom/root[.]conf;

and here you can see the nginx.conf.default File (Beginning with the log_format section and access_log section commented in by myself):

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {

I could not find any place in the nginx.conf file which seemed to inlcude the default one, so I am rather bamboozled about the existance of this file. Could I just change the two (like swapping)

Also another question:
How do I make the changes in the nginx.conf Files (which I made in the container) persistent?

Maybe with an additional volume line in the docker compose:

• /path/to/volume/nginx.conf:/etx/nginx/nginx.conf

Thank you so much in advance for your help and sorry for this long text.
I hope I made everything clear enough for you to work with. If not, please let me know :)