This app was mentioned in 2 comments, with an average of 1.00 upvote
https://play.google.com/store/apps/details?id=com.ideamats.vrtube
That one seems to work for a lot of videos. On some I get an error and I'm exactly sure why. I think it may not work for videos that play an ad first.
VRTube can do that. Awkward interface, but the preview version (linked above) that doesn't do playlists or local files is free.