Have you tried installing Firefox focus and either using it as your mobile browser or setting it as the content blocker for Safari? You can also try an ad bloc

Have you tried installing Firefox focus and either using it as your mobile browser or setting it as the content blocker for Safari? You can also try an ad blocking app like AdGuard. Or set up something like PiHole at home (or VPS) and use a VPN to connect to your home network (or VPS).