>>taubek+(OP)
Or, in other words, FBI now recommends using Android :-) It's baffling how much better uBlock Origin + Firefox experience on Android is compared to any iOS ad blocker I have tried. They kind-of work but let half of the ads through.
>>Samuel+sK
As others have said, .mobileconfig or official app work great.
I geek out a bit and use Surge for iOS (pricey and not for non-techie users) and run a few proxies. It'll also allow for DNS override, which I use NextDNS's DNS over HTTPS.