Unable to disable Taskbar Thumbnail Preview on Windows 11

Hello support,

I would like to disable the Taskbar Thumbnail Previews. I've seen this article

https://www.wisecleaner.com/think-tank/459-How-to-Disable-Taskbar-Thumbnail-Preview-on-Windows-11.html

But on W11 I don't have the Group Policy. I've tried to install this (after googling) but didn't succeed.

The second option to change the settings in W11 doesn't work also, because the list of options is very different on my device. See screenshot

https://imgur.com/a/b4nG3zc

So is there maybe another way to disable the thumbnail previews? It's very annoying as I switch many times on the taskbar, and sometimes the thumbnails stay in sight for seconds, while my mouse is not in that area.

I hope you can help out.

Thank you,

Yolanda, NL