Some time ago I wasted about 2 hours of time because of that damn brltty, wondering why the tf the arduino was not being detected until I followed dmesg. I was very upset at the time when I found out what brltty was. Like I get some people need that but if the user did not connect a braille display during install then the daemon should never be enabled or just uninstalls during os installation.
You should be able to make docker exempt from early oom. Check it’s github for instructions.