It can mask your ip from other sites, some have adblocking on them too.

I personally use PiVPN which gives me access to PiHole so I have adblocking on the go.

So like Google still gets stuff, but I figure in trying to get privacy, every little helps.

Worth doing, I’d also recommend looking into ADB and removing Gemini and other google apps. It’s not an ideal setup but perfect is the enemy of good

like i wrote under your last post, install netGuard as a VPN and activate "manage system apps" which will permit you to block google calling home

also, with ADB you can uninstall almost anything (be careful!)

you can also choose a dns which would block those (mullvad, for example

Try Universal ADB Debloater, you can probably remove most spywares from it. Surely I can't trust it as much as a FOSS rom, but from my quick network inspection my samsung stock rom with UAD makes pretty much no network connection at all.

Yes. Exactly.
But why give your ISP (or any wifi you connect to) all your browsing habits?