Edge often doesn't close all processes

Edge will, as we all know and understand, often have a dozen or two or more msedge.exe processes.  I have run in the background and startup boost disabled (it's even disabled in a group policy to stop it from running on any system), but when I close edge, it will often leave a dozen msedge.exe processes running, often using 500MB or more RAM (I just killed one set that was using a gig of RAM).  Edge needs to do a better job of closing and terminating all msedge.exe processes when the last tab is closed or when the upper right hand corner X is clicked.  Chrome used to be notorious for this but has gotten much better in recent builds.  Edge is behind on this.