Apple and its consequences on computing world...
I can not deny that it changed the smartphone industry big time but it was not for the best in my opinion. I understand Apple products appeal for some people though, they have subjectively good design for some, and are objectively very stable and easy to use for a non techie. My issues are how closed IOS is, the overall paradigm of domestication of users, being very anti repair and on average more expensive.
Google itself as of this moment never did put adds on a lock screen, it is the manufacturer or third party apps who can do it. Some Realme and Xiaomi phones do it afaik and probably some other brands.