Looks like a new alpha for pano was released yesterday to support GNOME 47: https://github.com/oae/gnome-shell-pano/issues/315 . Otherwise you can hotfix your current build as described in the thread. I have no idea how it behaves in multi monitor setups though. On my setup it ‘bumps up’ your display and the clipboard entries display beneath, same like the on-screen keyboard or like a keyboard in Android. It isn’t a floating window.
I’m not using any extension for the ‘hot corner’ functionality. It’s at the top of ‘multitasking’ under GNOME settings for me.
Unfortunately I don’t know much about manually adjusting the functionality of searching in the launcher. The extra functions I have found were just a result of experimentation, or happy accidents. I can teach it on-the-fly though. Once I’ve found a string which returns the function I want, but isn’t the first result returned, I either click the result I want or use the arrow keys to navigate to it instead. Then the next time I use the same string, the result I wanted is returned as the first result. e.g. “sys” initially returned KDE System Settings as the first result, but I manually selected System Monitor. And now “sys” returns System Monitor as the first result.
On the other hand, it’s not like we have 600lb bears charging around. Pretty much all kinds of attack by our land animals can be thwarted using the ancient & mysterious art of wearing enclosed shoes & pants.