Safari is aggressively attacking the tracking problem as a code browser feature, and the as blocking capabilities are sufficient for blocking all the ads you need blocked anyway. It just can't do all the other page optimization / CSS stuff to strip out elements completely, so you might have some empty divs or whatever; who cares

I have Pihole on my network doing DNS/ad-blocking.

So just install a content blocker? I don't get what you're trying to say.

Plenty of them out there for iOS and macOS and they work well.