Same AuthID for multiple backups

Hello everyone, today i run multiple backups in different computers, using OneDrive as the storage.
Is it safe to use the same AuthID (oAuth) for every backup? Currently i’m using it because it’s more practical. I just copy and paste the AuthID, without having to login everytime i install a new computer. Can i have any safety problems (or any problem at all) by doing this?

I think it’s fine. I do copy-and-paste a lot. It’s just your authentication. You do need a different folder.

If you want to get super paranoid, I suppose different AuthID would limit harm if one of them got out.
Obviously if other computers have different users, you may want a different AuthID on their account.