Brave on iOS is a, more or less, perfect Youtube Player. I haven't seen ads in months and it just works while also supporting the download of videos and creation of local playlists.
Are you saying that, by default and without any account, the official YouTube iOS app does not display ads? Then why are there so many alternative frontends which have ad blocking as a feature and Reddit is littered with threads asking how to block ads in the app?
It only does it if you have a paid account, which is clearly not what the original commenter was referring to.
It’s your prerogative to not block ads and to spoon feed all your watch data to Google for easy monetisation and tracking, but it’s clear the original comment wasn’t talking about that route. YouTube is clearly not “the perfect app” in that person’s view when it requires an extra paid service and a higher loss of privacy.
Frankly, from your other replies it seems like you realise this. Which makes this exchange a massive waste of time for everyone. Please don’t purposely fuel disagreements.