In the end you'll win this war, maybe not in the way you envisioned but win it you will by avoiding 'content' altogether. There is more than enough to read, listen to, see and do that you don't need 'content' to keep you satisfied. Drop it like the lukewarm turd it is and you'll be better off while they can hide their ads where the sun don't shine.
Source: living ad- and 'content'-free for decades
edit: actually, and this is just a tangential point, I don't think 'content' covers plays or other live experiences. It's usually screen-based, and the main possible exceptions are things that are almost interchangeable with their screen-mediated forms, like books or magazines.
On iOS, I see ads for paying for iCloud.
Entering my own apartment, the elevator has ads blasting on the tv.
Wont even start on Windows or web browsers.
There's your problem, you rented a terminal managed by the fruit factory so they get to decide who the thing serves. Either "jailbreak" the thing or get a Google-free Android device with an AOSP-derived distribution on it. I have the latter and I don't see any ads.
Windows... same thing. Avoid it if you can and yes, you can unless your employer forces it upon you. In that case see if you can use the LTSP version since that isn't as laden with spy- and adware as the regular versions.
Browsers? Firefox or one of its derivatives help to get rid of ads and other nuisances. I don't see any ads on either mobile or X-top, they don't seem to make it through the combination of network, host and application-level filtering. Those filters just work without needing maintenance, you just need to put them in place.
As to that elevator blasting ads you're more or less on the same situation. The only way to avoid that would be to make sure you manage your own environment. Doing so is much more involving than changing from a fruit phone to something under your own control. I live on a farm in the Swedish countryside where ads just don't seem to thrive, I understand this isn't for everyone but if you're serious in wanting to escape there'll be something similar available in whatever country you call your own.
I agree with you otherwise, though.
Also hate clickbait title cards? Theres now an extension to remove those as well: https://dearrow.ajay.app/
This SponsorBlock extension also integrates with yt-dlp so downloaded videos can have ads stripped in the final video. That way you don't even have to ever go to youtube itself. The war isn't over yet and people must keep fighting back.
The future is unfortunately propaganda and brain rot.