Regular Fedora Workstation is my standard OS these days, so I suspect Silverblue may be in my own future. I look forward to giving it a try when time allows & curiosity overwhelms!
Aside from Linux distros per se though, I think there's a need for something like ChromeOS (preinstalled, appliance-like, as foolproof as possible), but without the deep single-corp dependence. Unfortunately I don't think the market in its current state is capable of filling this need.