Devjavu

If you are using LibreTube this is fixable by disabling piped proxies in the setting. HOWEVER do be warned that Youtube will know your IP, so you should only really do this while using a VPN service.

I think I don’t know enough about all this to understand your words magic man

What booth in this case?

Bitwarden if you want it in the cloud, Keepass if you want it on the device. I’d recommend PrivacyGuides.org’s recommendations this time. They are rather careful as to what they recommend, still doesn’t mean they always get it right.