RE: https://social.lol/@nfd/116655379714365393
OMG FINALLY!!! I've been hitting my head against this Affinity Studio on Linux issue for too long. Context menus were showing as black squares until I found this fix for another app.
https://forums.lutris.net/t/solved-black-menus-in-ffxiv-textools/23303
Solution:
Add new DLL override under “Runner options”.
Key: “d3d9”
Value: “builtin”