Very occassionally (approx. once every 10-20 hours of gameplay) memory leak occurs and fps rate drops down significantly, even in quiet regions. A client restart fixes the issue. Unsure what triggers it.

I used to run Proton 7.0-6. But for about a year, I've found Proton Experimental works better. Other Proton versions have failed to launch the launcher (launcher starts then instantly closes itself).