Dorico, dongle and Cubase

If i have Dorico (with dongle), can the same dongle be used also with Cubase?

Yes, a Cubase license will be stored on the same eLicenser.

But keep in mind that this will work only up to Cubase 11 and Dorico 3.5. Cubase 12 and Dorico 4 do not use the dongle at all anymore.