Newly installed browsers open but don't show

Hi there, I have an old laptop where I’m running Manjaro; normally I don’t use it but now MIL is visiting and have given it to her. Everything works fine except one small thing I recently noticed. I installed Chrome and Brave and when I start them, they load up fine but the window is not rendered. I can see the thumbnail when I hover over the running instance in the taskbar but when I click on it nothing happens, same if I Alt+Tab to it.

The one chance where I managed to run it is when I used a different layout than the default and I was able to start somehow a full window of it. Starting the browsers from the terminal doesn’t reveal anything (there is a small warning but I get that from Chromium as well and that works fine)