Not even speaking about all the ads in the default YouTube app without a subscription.
The app is basically useless in my opinion. It defaults to freaking 240p for every video. My phone is definitively not the problem, also not the Internet connection. Watching in Firefox on the same connection gives me normal expected quality.
This was better on some “feature phones” without touchscreen!!! YouTube app works and playback is in 720p / 1080p
Use the Firefox nightly build and you can bring your desktop experience to mobile.
Not only can you use sponsorblock but also ublock origin. Plus you can use picture in picture and play the videos with your phone locked by default
Its literal perfect fir my usage