Alpine is also arguably not “GNU/Linux”, as it doesn’t use GNU Core Utils or glibc. But I don’t know anyone who would suggest that Alpine isn’t “proper Linux”.
As you point out, what you want is a phone you can run “full Linux distros” on. Ask for that. That request is completely clear and well defined. What does GNU have to do with it?
Exactly. When I say I want a Linux phone all I get are Android options. What I want is a GNU/Linux phone that I can run full Linux distros on.
Alpine or PostmarketOS works for older stuff. Some others will run Ubuntu as well.
Instead of “Linux on [phone]” try using Debian/Ubuntu or one of the mobile-targeting distros as a keyword
Alpine is also arguably not “GNU/Linux”, as it doesn’t use GNU Core Utils or glibc. But I don’t know anyone who would suggest that Alpine isn’t “proper Linux”.
As you point out, what you want is a phone you can run “full Linux distros” on. Ask for that. That request is completely clear and well defined. What does GNU have to do with it?