Gave Silverblue a real go, and while I liked a lot about it, there are just small papercuts that pile up for my usecase with it. The main one is that QT applications on gnome integrate like shit, with gnome's QGnomePlatform theme for them being terrible looking, having issues with dark icons on dark backgrounds, qt themes being generally less available as Flatpaks, etc. A QT application I really need is Strawberry, a qt6-based music player. I tried to just use rpm-ostree to layer strawberry and kvantum with a different qt theme on top of it . . . but Fedora's kvantum release doesn't support qt6 like on the other distros I use. I tried other ways of getting around this with using toolbox / distrobox containers, but then graphical applications don't integrate well and have other problems . . . It just piles up on me and gets on my nerves. I think its image-based approach is definitely the future, but it's not ready yet for me. Fortunate to know that a few of them will disappear with future updates, though. I'm excited for what it's going to offer in the future when it (hopefully) becomes the way normal Fedora Workstation works.
And so I'm back on my usual arch setup. I put more effort into securing my system and making it more resilient with full disk encryption, secure boot with unified kernel images, automatic snapshots and backups, and selinux with apparmor to get it on par with Fedora Silverblue's level of general security and seamlessness. It's gone pretty well.