I feel like NewPipe would be awesome if it weren't just for Android. Like if you could run it on PC/Mac/Linux. iOS wouldn't be entirely out either, since you can sideload up to 3 apps with a free developer account. If you have an iPhone or iPad, you already have an Apple account, so you can just make it a developer account, and all that really does is add you to the developer mailing list, which isn't that annoying.

Of course, on the computer I just use Firefox + uBlock Origin, but I can do that on Android, too. I've never tried watching YouTube on my Android phone (my iPhone has a bigger screen, but I'd just rather use a computer) but I bet I can block the ads in the browser. I think the app comes with it. My iPhone doesn't even have the YouTube app. I never see ads in Safari using uBlock Lite, which is a DNS filter, which is exactly what Android users without root are doing, AFAIK (or VPN-based blocking e.g. PiHole that's platform independent).

(So basically I prefer a solution that works on all my devices from various vendors. But a good option for Android, especially since Google backed down on canceling sideloading!)