Safari webpage shifts when sidebar peeks
For a couple of years, Safari has had this weird behavior when you put your cursor near the left side of the screen where your sidebar peeks a bit. However since Tahoe I have this bug where it peeks a bit but the whole webpage moves as it it actually opened fully. To show its size, I've opened it fully in the video and you can see the behavior is exactly the same.
It is obviously a bug, but I haven't seen any discussion around it. Is there any way of disabling this?
Video (both Safari and Tahoe 26.1):
Mac mini