Audacity
From Achintya Rao’s Wiki
Audacity seems to have had a long-standing bug on Linux operating systems I have used, and it continues with Kubuntu 25.04. The editing area glitches and doesn’t update unless you resize the window, making it tremendously unsuitable for editing.
I looked it up and found a solution on the Audacity forum.
So, what I do is:
$ GTK_IM_MODULE=audacity $ flatpak run org.audacityteam.Audacity # since I installed Audacity using Flatpak
This seems to resolve the issue.
See also: <https://bugs.launchpad.net/ubuntu/+source/wxwidgets3.0/+bug/1876212>.
