Is there any plan to fix DX12 on Proton?

Currently it just sits on the loading screen and doesn't reach the main menu.

Is this also for EXP?

Wait, no, Proton.

This is Steam Deck, isn't it?

Hmm.

I haven't heard anything about this at all, or seen anything in the pipeline either.

QA site, I can also ask.

I'm archiving, I can ask about this.