I use KaiOS on my phone. It's pretty good. A nice cross between 'dumb' and 'smart'. I like it a lot. No forced upload of my contact lists and no forced membership of some eco system.

The only gripe I have is that pre-installed software can not be easily uninstalled but I understand they need to eat there too so I'll give them a pass. Rearranging the icons took care of that particular irritation.