It is a search engine with good returns because it is a targeted audience.
The volumes can be small, but they are still very good if you are targeting companies, as most of them still use Windows computers and their default browser can therefore be Internet Edge.
You can use their marketing platform for the entire Microsoft network, such as Ecosia or LinkedIn Ads.
Microsoft is a complete eco-system and I have listed below the main channels where you can advertise:
from Xbox to Outlook and more.