What do you see as poor Linux support?
If Fleet supports Wayland natively I might give it a try, otherwise it's dead on arrival for me.
I am referring to lack of an installer, and also the default shortcuts which clash with the distro, and in general I've seen features come to Linux a lot later. So a better way to put it is that Linux feels like an afterthought to Jetbrains. I do follow and also raise issues you on YouTrack but find they often languish.
Their IDEs are still overall pretty good, but I gravitate towards VS Code now.
Besides this, I never really felt that Linux was an afterthought though. At least from my experience using CLion.