How to uninstall Pro Tools 2020.11 and revert to 2020.9.1

[ArKay99]

I couldn't find a guide for doing this. I just want to get a 'clean' install of 2020.9.1. I installed 2020.11 over 2020.9.1 because AVID said they fixed an issue I was having a problem with. They actually made it worse..i.e. they broke the 'work-around'. I trashed the Pro Tools.app in the Applications directory and reinstalled 2020.9.1 and everything seems to be ok. I'm wondering if there are any files that should be cleaned up first and then do another re-install. Since there were so many new features in 2020.11 I'm not sure if there will be some file, somewhere that needs to go back to the previous version also. For example, I still have the 2020.11 Icon in the launch bar instead of the 2020.9.1...