Strange horizontal scrolling behaviour in the editor

Chrome on Linux:

I just updated Chrome to the latest version. When I open a flow in the editor, as soon as I move the mouse into the editor window the horizontal scroll bar shoots off to the far right.
I can drag it back but as soon as I release it, it shoots off to the right again!
Doesn't happen on Firefox, so it's definitely a Chrome issue.

Short film as illustration:
Peek 2025-10-02 18-38

What version of Chrome are you seeing it on?

Version 141.0.7390.54 (Official Build) (64-bit)

I'm having problems outside of Node Red with Chrome. So this is not a Node Red problem!
Sorry for wasting your time!