Another issue that one of the users reported was that the app on their system doesn't have a titlebar and this is the screenshot that they sent:
This is their system:
Debian Trixie 13, Gnome v48, Wayland
They do actually have a titlebar, but it's hidden behind the calculator. You can see it in the top right corner. Like if they click on the top right corner that you see, It closes the app.
Nothing extracted yet.
Compatibility Report
System Information
I confirm:
Symptoms
When you resize the app, then it flickers and glitches out on Linux.
Works fine on Windows.
Reproduction
Just resize the window and you'll see.