@NiLuJe
For context, I have a Kobo Libra 2 running 4.37.21586 and it's connecting to a Windows 10 computer.
I see what you mean by the first paragraph now.
For the second paragraph, I weirdly don't see any KoboRoot.tgz file that I supposedly should delete after I delete the whole [FeatureSettings] section and before I eject (if I read that correctly). Is that normal behavior?
For the third paragraph, you mean the KOBOeReader.conf in /.kobo/Kobo right? Is it safe to tweak this (I have backed up my whole Kobo just in case and am aware of that Kobo firmware website, not sure if I can link here)? Should I delete the whole [FeatureSettings] section, eject, reboot, then plug back in, add [FeatureSettings] and the code that should be there afterwards, eject, and reboot again?
For the final paragraph, I couldn't find "Kindle Utilities" plugin in calibre but I already have the KoboUtilities plugin. After running a database check, I got this.
Code:
Result of running 'PRAGMA integrity_check' on database on the Kobo device:
ok