Jetbrains RIDER and other IDE gray blobs
I actively use JetBrains IDEs such as Rider, Webstorm, Pycharm, and Datagrip. I am using KUbuntu 24.10 and KDE 6.1 as my operating system. I have a common problem across all these IDEs. The UI works incorrectly quite often.
1.While scrolling, the editor window occasionally turns completely black for a moment and then fixes itself.
2.When I try to create a new file, sometimes the dialog window doesn't appear, and it only shows up when I click somewhere on the UI.
3.When I use "Find all references," I wait for the window to appear at the bottom, but it doesn’t show up. Similar to the issue above, the window actually appears at the bottom, but it doesn't render until I click anywhere on the screen. Once I do that, the window appears.
-Dsun.java2d.xrender=true
-Dsun.java2d.opengl=true
I have tried above parameters, The first problem cause of from these settings, but the issue occurs in all cases, whether the second and third Java parameters are present or not.
Here is an example of such an error:

rider-logs-20250305-23490714455846203776162900.zip
https://drive.google.com/file/d/18VYGlmQZhrkkPO9G8N3d8td4jM2r-4VT/view?usp=sharing
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esefberfu looks like an OS + graphics stability issue to me - at least I found some threads mentioning performance or graphic issues in Kubuntu 24.10 (e.g. this one).
Unfortunately, I see nothing pointing to the problem on our side in the diagnostics that you provided. You might want to try some of the following:
-Dawt.toolkit.name=WLToolkit
to the file opened via main menu Help | Edit custom VM options… and restart the IDE. Note that it's now in preview mode, and there are some unresolved issues, but still it might provide a better experience.If none of the above helps, please consider switching back to the LTS release.