``` MOZ_ENABLE_WAYLAND=1 mozregression --launch 2021-12-14 --pref gfx.webrender.allow-partial-present-buffer-age:false gfx.webrender.max-partial-present-rects:0 ```
still reproduces the issue for me. The prefs are indeed changed in `about:config` that way. I can't test on a tarball nightly properly because of the weird behavior that I mentioned above.
``` WAYLAND= 1 mozregression --launch 2021-12-14 --pref gfx.webrender. allow-partial- present- buffer- age:false gfx.webrender. max-partial- present- rects:0
MOZ_ENABLE_
```
still reproduces the issue for me. The prefs are indeed changed in `about:config` that way. I can't test on a tarball nightly properly because of the weird behavior that I mentioned above.