I paid $1.99 for Vinegar and on my iPad (and Mac) I get ad blocking, videos playing in the background, etc. It can be a little clunky because autoplay of the next video doesn't seem to work and there are times I'd like to use a music playlist. It's probably my fault but a quick glance at settings didn't resolve it.

https://apps.apple.com/us/app/vinegar-tube-cleaner/id1591303...

I use the web one exclusively. Other than the video pop out feature missing and once in a while scrolling bugs on shorts, it actually works perfectly fine.

I refuse to use the YouTube app because they disabled playing in the background or with the screen locked . They Want your eyeballs on the screen for the ads. It so blatant.