Zoom factor wrong on MacBook pro

Hi all,

I noticed that on a MacBook Pro 13’’ 2020, when I press option+1 the image gets zoomed by 200% (even if the little thumbnail in the top left of the screen says 100%). Similarly if I press option+1 twice, the image gets zoomed by 400% (but the thumbnail says 200%).

Has anybody noticed the same issue and can suggest a solution?

thanks in advance!

Sorry I forgot to mention that Darktable version is 3.2.1, from the binary installer.