One nit: it's too bad Valve / Igalia choose to completely ignore the lessons from Bazzite.
Bazzite already runs a scheduler like LAVD, called BORE[0]. It would have saved them a lot of work to extend and improve that rather than invent the wheel again. I'm not sure if Valve and Igalia are unaware of Bazzite and BORE or if this is a case of NIH.