What's the difference of NewPipe to ReVanced?

Revanced is a mod for the official Android app, where NewPipe is an original app.

In practice this means that Revanced will be much more feature complete than NewPipe.

It also means revanced is legally dicey whereas newpipe is essentially a legal frontend/scraper of YouTube.

Revanced is only distributed as patches, probably to avoid being susceptible to the claims against the original Vanced.

Worth noting that ReVanced has a lot more patches than just YouTube.

Not that I care about it but I'm sure you are also violating some terms of service by using NewPipe

A trained monkey to operates the controls for me.

NewPipe has many features that the official app doesn’t, such as speeding up videos up to 5×.

Revanced supports up to 5x too.

NewPipe always works while the weird revanced route worked for me exactly once out of the several attempts on two phones.

Top comment right now says "newpipe breaks every few weeks or so", but revanced builds in my experience last for at least a year before a new build is required. Personally I'd prefer more upfront steps and get a stable result, rather than something that works quickly but breaks often.

Other comments claim it keeps working for me. Works for me as well (except the last week or so).

I wouldn't mind working a bit for the permanent solution but revanced worked for me once, required a weird microg or a weird play services replacement installation, and then spending endless hours trying to build an working apk.