

This rules are part of and enforced by the google play framework, so I would assume that as soon as Google Play and/or Google Play Services are installed on Lineage or other custom roms that then the same limitations come in effect. This is only an assuption by me, based on how I understand it, so I may be, and I hope that I am, very wrong.





Maybe delta chat could be the right thing? https://delta.chat/
It uses email technology to implement the secure chat