i mean not related to this. buying european and turning american brans upside down will do nothing. we need eu sanctions against amerikkka

Why buy European when you can steal American? Just take all free American stuff, delete all accounts on american websites and services and defy American IP law. We should take China as an example.

i just use pacman, mean it has checksum tests after downloading since youre only really downloading the launcher

i only ever used arch linux idk how other distributions handle it

try installing ffmpegthumbnailer and see if that works after reboot / relogin, if not uninstall and try another method