Deploy Outlook add-in over manual install

[DavidDawson]

Our company of about 200 have installed the Outlook add-in manually before I joined. I'd like to manage all our add-ins through the Microsoft 365 portal. Do I need to find some way to remove the already-installed add-in or can I just deploy the add-in through Microsoft 365? I don't know if the destination for both methods will be the same and I imagine that if it is, there shouldn't be a problem. Does anyone know? Should I engage support on this situation?