If you use KDE Plasma and want an app which looks like your other Qt apps: https://apps.kde.org/keysmith/

you might be interested in pinchflat or tubearchivest which are made for this task

I believe thats only true for the unofficial version (Vaultwarden - API compatible to any Bitwarden app)

yea pinchflat has been easy to setup
also adding the videos to Jellyfin was easier than expected

I’m using pinchflat with Jellyfin (category mode “Music videos”) and it displays titles, descriptions and thumbnail correctly

pinchflat allows to embed metadata + thumbnail, idk if tube archivest has that too