Visual glitch. A gap between tabbar and address bar in Edge 143.0.3650.66

It appears that you are experiencing a visual glitch in Microsoft Edge version 143.0.3650.66, where a gap between the tab bar and the address bar allows you to see the content behind the browser. This issue, along with the flickering and graphical corruption triggered by changing the input language or text case, may be related to compatibility problems with your specific setup on Debian 12 using KDE Plasma.

Unfortunately, the context provided does not contain specific information regarding this particular issue or any known workarounds for graphical glitches in Edge on Linux environments. It may be beneficial to check for updates or patches from Microsoft Edge or consider reporting this issue through their support channels for further assistance.

References:

• Microsoft Edge known issues

There are a few visual problems reported in the latest version of the Edge browser, many people are reporting problems with the top bars in Edge, try completely uninstalling Edge, restart your system and then download and re-install Edge.

Also, open Edge settings, then type hardware in the settings search box, if there is a hardware acceleration setting in Edge on Debian, try disabling that setting.

I've figured it out! It's a good thing I was changing the theme from light to dark yesterday and noticed that odd GTK parameter. That parameter was creating the gap between the tab bar and the address bar all along. The gap has been completely eliminated.