The 'top tags' section of a User Profile overflows into the right side of the page. This happens when the tag names are too long.
This has a flow-on effect with the 'Newest Posts' section too:
I'm on Windows 10, Edge 64-bit version 88.0.705.63. I have a 1920x1080 monitor and the window is maximized. This also seems to be universal because I see it on my iPad also (iOS).