A YouTube client that can't AdBlock and SponsorBlock automatically is strictly worse.

Is there clients that block? I just use Brave browser

NewPipe, but it is an Android exclusive.

PipePipe and Revanced both do both perfectly.

This used to be true, but really is not anymore.

Also, I wasn't aiming at the official Youtube app, but at PipePipe etc. The great alternative Youtube clients Android has.