Strange display color problem when switching users

Windows 10 Pro 22H2 system with 2 different users.

It’s more of a minor annoyance than a real nuisance, but if I switch from the logged in user to the other user, and then switch back to the original user, the gray background color changes slightly.

And, like they say, a picture is worth a thousand words so here they are.

Here’s the display I get if I login with either user 1 or user 2.

If I then switch to the “other user“, it still appears exactly the same as above!

However, if I then switch back to the original user, it looks like this.

Notice how the gray is a completely different shade.