It's a pity that it is limited to lemmy.ml :/
yes, I have used both and personally the libretube is better. although newpipe is also great
oh yeah, I forgot about the whole apple engine. it's kind of nonsense that all browsers have to use it. Let's hope this will change when Apple introduces sideloading
yes, it's true, especially useful for IOS users, but for Android I recommend YouTube Revanced. you can block ads, there is sponsorblock and many others, such as disabling the "shorts" function