Hi,
I know it sounds weird, but in Chrome, in playground for the light theme the cursor is ‘white’. I checked in incognito, no extensions, no cookies.
It took a little bit to understand where disapear my cursor. 
All good for the dark theme. And all good in Edge & Firefox Thanks
What version of Chrome you’re using? I checked mine just now and the cursor is normal.
It is up to date I think, v109.0.5414.120
I checked on a different notebook and all good.
Thanks for looking. I’ll try to reinstall browser, … or maybe a driver update, anyway, very strange