Apparently, it doesn’t have the described issues. I also use AdGuard on iOS/Safari and see only occasionally desperate ads. I expect ad networks to target this with mv3-hard methods now that it will become widespread, but up until now it just worked.

Apple and google did everything for you to not know about it. It’s not the first thread where people either don’t know about it or will read but won’t try.

The only time I use Safari is when the MBP is unplugged because it improves the battery life. I have the AdBlock extension but I'm looking for something better.