That’s one of my biggest annoyances too but I can live with it. It will probably improve in the future when some changes are made to Fedora.
Another thing I came across today that I took a while to figure out was my Flatpaks not following the system theme. In the end I had to give flatpak access to my ~/.icons and ~/.themes and then set an environment variable of which icon theme to use. Another minor frustration but now that I am aware of it something I’m okay with.
One reason why I switched over to an Immutable distribution is to have less distraction of trying out new software/tools and tweaking that software and making my config better. So an Immutable distribution with Gnome suits me well since I don’t change much about Gnome and I’m not distracted as much as before by wanting try out new things and tweaking things
Sometimes I do think about going back to Arch but then I think “no thanks” because I don’t care anymore about having to configre things myself about system. I only care for configuring the user stuff, so stuff I run as my user and that’s enough for me so that I’m not distracted too much and I just use my system to work and game.