Hi, Chromium has been performing very poorly for me for the past few months. I
only use it occasionally, but this would be a showstopper bug if I used it
regularly. 

With a fresh profile using the integrated window buttons it is unusable,
because it kind of blinks and infinitely keeps trying to reload the window
decoration, and doesn't accept typing input. 

After switching to the native window borders (running XFCE on Tumbleweed) it
works better, but after minimizing or switching to another window and trying to
return the Chromium it shows a blank / transparent window, and it requires
resizing the window to make the Chromium window content visible again.

I tried this generic binary builds, and it does *not* exhibit this bug, which
is why I'm reporting it here on the openSUSE bugtracker:
https://www.googleapis.com/download/storage/v1/b/chromium-browser-snapshots/o/Linux_x64%2F844357%2Fchrome-linux.zip?generation=1610776812391123&alt=media

This build on the other hand behaves the same way as the Tumbleweed version:
https://www.googleapis.com/download/storage/v1/b/chromium-browser-snapshots/o/Linux_x64%2F796803%2Fchrome-linux.zip?generation=1597154956591051&alt=media

This is on an openSUSE Tumbleweed XFCE system running on a Thinkpad T530 with
Intel integrated graphics.