Honestly, blocking ads/trackers on mobile has always been a tricky business. You could set up Pi-Hole on your home network. Or see if there's something similar to this on iOS:
https://f-droid.org/en/packages/dnsfilter.android/
It's actually one of the reasons I use Android and why I'm looking at alternatives, like Librem 5 and PinePhone. I don't like how Apple doesn't allow competing browser engines on their phones and tablets (only skins that use Safari underneath), and I don't like Google's privacy issues on their phones.
Yeah, I've pre-ordered the Librem 5 for those same reasons. It will likely absolutely pale in comparison to Android/iOS features, but I'm wanting to go full "Off To Be The Wizard" and help develop the lacking apps.
