Personally I haven’t. While Linux is imperfect, choosing the right distro makes the rest of the experience straightforward. And with it’s whole complexity, I find Linux more user friendly than Windows. Even driver issues, broken shadow file ownership and KDE specifics only made me more confident about my choice to use Linux after I solved everything.
Out of curiosity, what about PostmarketOS is not daily driveable? Postmarket is a vague umbrella OS with a lot of DE options, all of which have vastly different user experiences. KDE mobile, phosh, and GNOME mobile have all come a long way and provide everything a smartphone OS needs. The only thing I’d argue that could prevent daily driving is lack of app support and lack of good mobile Linux hardware, but that’s not PostmarketOS’s problem.
have you tried it on a real device? maybe this is a hardware support issue, but no matter which DE i use (be it phosh, plasma mobile, gnome, …) it was extremely buggy and mostly unusable. battery drained like crazy, calls didn’t work properly, the list goes on. to be fair this was on a poco f1 and lg k10, which aren’t in main or community though…
my daily driver is a 2013 phone with custom rom and i’ve daily’ed a self ported ubports phone in the past, my level of tolerance for buggy experience in daily driver phones is very likely much lower than others