Figma unwanted gradient/shadow grain bug?

Using Figma in chrome on ubuntu. Always getting these noise gradients and shadows on every project. I’m not setting it to do that and it even appears in the pixel preview and exports. Any way of fixing?

Hey Torsten,
To cover some basics, can you please first check the Figma browser requirements here: https://help.figma.com/hc/en-us/articles/360039827194-Figma-browser-requirements#unsupported ? GPUs have known bugs and may cause rendering glitches when using Figma. It would be great if you can share your file by reaching ut to the support team here : : https://help.figma.com/hc/en-us/requests/new to check if we can replicate it. Thank you!