I use Obtainium (available in F-Droid) alongside F-Droid since both have auto-updates
this is still tolerable to the old days of updating manually

biggest upside is I can update Tubular/Newpipe faster via Obtainium while F-Droids build system takes days

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

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