They didn’t “just say Apple” because it wouldn’t be true. What gives you the impression ad blockers don’t work on Apple mobile devices?

The part where you are forbidden from using a web browser that isn't Safari (Chrome + FF use Safari under the hood) without jailbreaking the phone?

On my Android phone, I installed Firefox. It synced my extensions and installed uBlock automatically. That was it.

The last time I tried on iOS, I gave up. The adblockers I found didn't really work, they were painful to install, and the platform is so locked down that I couldn't figure out other options.