@nprofile1q... @nprofile1q... @nprofile1q... the correct terminology to use would be systemd phonesi think the main defining part of "Linux phones" is that they run generally the same applications as "desktop Linux", that being, they use XDG specifications and such. apps run on Wayland or X11, interfacing mostly with XDG desktop portals for a lot of lower level non-windowing functionality, perhaps through something like Flatpak with FlatHub for the primary app store.

most importantly: that you can just run any ol' Linux software on it without too much hassle. that's not really possible on GrapheneOS because it's hardened quite a bit in a way that makes sense for Android, but makes running things like the Nix package manager, and most Wayland compositors, completely unviable. (yes, a lot of stuff can run through Proot, see: Nix-on-droid, but that's a hack and has a significant performance cost)

is it technically wrong to call the XDG stack just "Linux"? sure, at any rate it's an imprecise name. does it almost always come with systemd? yes, but it's not a requirement, and there's plenty of distros that work with apps built for this userspace that don't ship systemd at all. but i think this is the thing most people mean by "Linux" in most cases, and certainly when contrasting a "Linux phone" against an "Android phone".