game playing in background, VSC window partially frozen (noob)

[nr1995]

Hi, noob here.
When I've got a game running in the background,
sections of the Visual Studio Code window intermittently get kind of... frozen...
They're still fully functional, but just don't... visually update.
It's a little hard to explain.

Steps to reproduce:

1. Open up a game (I'm using Half-Life 2, but I think almost any 3D game works).
2. Alt+Tab out to VSC.
3. Start typing something.
4. When your text starts not appearing, scroll the mouse wheel up and down to highlight the problem.

I've never seen something like this happen before, ever, on any app.
It never happens if there's no game in the background.

I don't know if running the game in borderless windowed mode like I am matters.
I have an AMD 7800 X3D CPU and AMD 7800 XT GPU.
Visual Studio Code (v1.100.2)
Windows 11 (v24H2)

Click the image for a YouTube video.
I had to record on my phone because the problem didn't show up when using screen recording software.