Sounds like maybe some prevention against this is already implemented in either particular Android browsers, or ad blockers, maybe even for specific sites?
Just speculating, I can't imagine a reason why they'd implement this especially for Safari.
Other than A/B-testing or trash code that coincidentally doesn't work in all mobile browsers.
Maybe they use the same AI that generates their fictious relationship stories to add these dark patterns to their code base :D
My understanding is that Apple keeps Safari fairly broken and doesn't care to implement the Googleverse and leaves a lot of things E_WONTFIX. I have read speculation that broken Safari encourages apps in the App Store.