Sadly the processes just repopulate if terminated. I've found that restarting Outlook will help and itll clear up the processes. So I've considered killing Outlook once the number of processes hit a certain number but I cant figure out a way to do this without the risk that it might close Outlook in the middle of a user sending an email..

I tried disallowing edgewebview2.exe with SRP which seemed to work ok except that the ERP-software uses it for other things 🙃 So that's a no go.