Setting up onedrive access for multiple websites

Hi, just bought the WP Media Folder plugin + Cloud addon.
I want to share my photos, available in folders on onedrive on multiple websites. Assume galleries is the way to go.
Some folders with photos will be shared on a specific website only, some on multiple websites.

For my main website, I've set up an app registration on Azure with client id and client secret. First experiments indicate this is working.
What would be the best way to set up the link to onedrive for my other websites?
Reuse the client id and client secret, or create new ones for each website?
Are there upsides or downsides to one solution or the other?

Any related tips are welcome too

Warm regards
Harry Nieboer