Random glitches of color in macOS 11 / Big Sur

I know it's a beeta and all, but just wanted to know if it's just me or someone else is experiencing it too..

I basciallly get this weird green background buttons on my touchbar at startup, it fixes itsellf after the system starts, but it's weird.

Now I got the same on my finder sidebar on a filepicker view, but with red background instead of black.

Is apple planning color-customizing features a-la windows? lol

I need to backup and reinstall prob too