About those "<app> will damage your computer" messages
Having trouble just found out I need to take some screenshot and make a ticket
First, start your Mac in "Safe Mode": How to use safe mode on your Mac - Apple Support. Starting in Safe Mode takes longer than usual so let it finish.
While in that mode, drag all the files in those three folders to the Trash except those with the following in their names:
Microsoft
Oracle
Valve
Zoom
Then, restart your Mac normally and confirm the alert messages cease to appear.