on logrotate, armbian-ramlog and postgresql (apparently installing postgresql breaks logrotate.service)

I've installed Armbian 22.08 Jammy (CLI only) on a Orange Pi 3 LTS and it works like a charm

but, apparently installing postgresql breaks logrotate.service...

actually on reboot syslog shows the following:

... armbian-ramlog[2065]: /usr/lib/armbian/armbian-ramlog: line 153: /var/log/./postgresql/postgresql-14-main.log: Permission denied
... systemd[1]: logrotate.service: Control process exited, code=exited, status=1/FAILURE
... systemd[1]: logrotate.service: Failed with result 'exit-code'.
... systemd[1]: Failed to start Rotate log files.

some things I found out after a shallow research:

• postgresql package post installation script manages the log files access permissions slightly differently from other packages, assigning ownership to root:postgres instead that root:adm. I mean this is what you get after postresql installation:

   ls -al /var/log
   ...
   drwxr-xr-x  2 root   adm          4096 Nov 16 16:58 nginx
   drwxr-xr-x  2 root   root         4096 Mar 22  2022 openvpn
   drwxrwxr-t  2 root   postgres     4096 Nov 17 18:20 postgresql
   ...

• changing postgresql log files access permissions to root:amd fixes the problem and makes logrotate.service run fine
• after a SBC reboot the postgresql file access permissions are restored to root:postgres (weird!!! is this because it's zram?)

I currently fixed the problem running a crontab script at reboot that sets the 'proper' access permissions and restart the logrotate.service, but I'm confident there must be a cleaner solution...

Anyone?