

This is actually a very relevant question: Bazzite is pretty much designed to avoid breakage, so if your fiancée is messing up the system somehow, something must be seriously going wrong.
But, to answer your question. If impatient, take Fedora with the same desktop flavor as her Bazzite, so probably the Fedora KDE Spin, as that is the default desktop Bazzite uses.
However: Bazzite basically is Fedora with sane defaults and, contrary to popular belief, isn’t just for gaming. Under the hood it has many powerful tools for development and power-users, such as distrobox and brew, coupled with being pretty much bullet proof due to the immutability. If you consider yourself in this group of users, it may be worth giving Bazzite another look and persevering to get over the odd learning curve.
















The downvotes are not from me. I’m just trying to understand your angle and (perceived) frustrations. No offence intended here.
However, Bazzite IS Fedora, so you may run in to similar issues that have bothered you about Bazzite too.