I don't know if you noticed it, but it will interfere with pin on top extension and conky or something else that stay ontop I don't know, these are the one I saw right now. I have checked it multiple time and reporoduced it with new account.
for conky, it open and works as expect but once if you switch to another workspace for some reason the conky will be lost from the screen and turning the extension (blur my shell) off will bring back the conky screen/window.
similar thing happens with pin on top if show on all workspaces is on, lets say a video is on pip mod in ff and if you switch to other workspace the video will be lost but you can see it in the activities overview, and turning the extension off will bring expected behaviour.
Edited: turns out it is Applications blur (beta) conflicting with others, I don't know what that implies but turning it off make everything work as expected. Thank you for this extension, I hope it will gain gnome 44 support soon.
I tried to fix it, but I don't know why, something make the conky's compositor private window be hidden after workspace change.
@cassop in #404 mentionned:
I tried to fix it, but I don't know why, something make the conky's compositor private window be hidden after workspace change.