I have the clipboard set to open "at last position".
Every time I open it again it has a little gap. It's slightly away from the right side. I have to use the windows + right arrow key to fix it. Drives me nuts.
See the pic. There's a tiny gap, showing the window behind it.

1920x1080p standard hd monitor, windows 10 22h2. No second monitor. (Sometimes a second monitor, that is a digital pen tablet, but usually it's off). I have display fusion installed but I usually only need it running for the tablet. I have powertoys always running, with fancy zones, if that matters, but I doubt it.

I just realized this always happens with my windows task manager too. It remembers its last state, that it was halved to the right (win + right arrow key), but it also has a gap. So the problem is probably on my end, although I have no idea how to fix it.