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.
i would like to see more cutting edge attempts. this is more of a linux ecosystem thing but try new things even if they dont work out. until very recently, parental controls have been non existing or barely functioning.
for the linux ecosystem to be mainstream it needs to cover more people.