I've been doing it for almost a year, am I missing something?

I, too, want to mention that this has already been working.

Any app that works with "real" Xwayland (or already is Wayland native), will work on WSL2. WSL2's Xwayland uses Mesa/DRI's WDDM backend, so its translating DRI IL into DX12 IL, and passing it off to the GPU driver inside of NT kernel space.

There are a few exceptions, such as I think Firefox has a bug where its misinterpreting the DX12 Mesa target and attempting to use a feature that isn't advertised (they're working on a fix); Chrome (thus all the Chromiums and Electrons) work, GTK, Qt, the Java toolkits, etc, all work.

It was a genuine question. Good to know that this is possible! It was my understanding that it was not the case.

There were issues with enterprise vpn and firewalls last time I tried, but on a home desktop gui apps basically just work.

Can I ask why? Jetbrains products on Windows have good WSL support and remote interpreting already.