COSMIC is definitely a really neat desktop, and I'm looking forward to the stable release!

I have had the alphas installed and usually give it a go for a day or two each revision. Currently there's definitely some oddities regarding graphical glitches, such as after suspending the system - but I like where it's headed.

For me right now the biggest roadblock is the lack of a night light mode (blue light filtering). I've gotten so used to relying on it in other desktops.

I do have some crappy $20 blue light filtering glasses, but they're... Not great or comfortable to wear for any extended amount of time. And my monitors' built in color shifting mode is also pretty lackluster.