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.
Just a little bit with the direction of GTK and Gnome. Yes, I’m still salty about that. I miss GTK2 and Gnome 2 where everything could be customized and there were thousands of different themes. Of course, I switched to MATE and I’m still using it, but all my favourite GTK2 themes eventually stopped working and now my desktop looks very generic, like all the others.
Again, I know I’m free to be nostalgic as I want and install any project that wants to try to revive or keep GTK2 alive. There’s apparently a few. But I’m just a bit disappointed that it went this way. I switched to Linux more than 25 years ago because I could customize it to look like I wanted, and the more time passes, the more those features are getting hidden or removed and now everything looks the same.