I’ve been using KISS launcher and I’m really happy with it. It takes some getting used to though, as it has a different search based approach.

Nextcloud + collabora online works pretty good for me.

I think the biggest advantage for my use case is the no fuzz aspect. In the rare case something goes wrong I can reboot and select the previous version that worked without a problem. Also the ease of mind knowing I can’t really fuck up my machine, as the important parts are immutable. Other than that I enjoy having everything gaming related already configured correctly as I use bazzite - but that’s probably also true for non immutable gaming oriented distros.