If you want to tinker with the system, if you want to install multiple DEs, if you want to test and change things on your own, you may not like the rigidity of atomic systems.
If you don't want to tinker with your system and you always want to have a working system, go for it.
In the future it will become easier to tinker with the system (I hope that it doesn't take the path of android). I hope that more happens within containers and that it mature even more. Maybe the de within a distrobox? That would be awesome but I don't no the downside of it.
Right now you are still an early adopter. It sounds like the future and for many it will be, but who know what's next. Especially companies have an interest in fedora's atomic distros with ostree.
With fedora atomic, lets say i wanted to try out kde desktop for a while.
i would first pin my current build so i can roll back to it if i dont end liking kde with
$ sudo ostree admin pin 0
Then i would rebase to the kde branch with
$ rpm-ostree rebase fedora:fedora/39/x86_64/kinoite
Then just reboot. That’s literally it and i would have a kde system with all my layered packages and i could roll back to my old system at anytime.