It’s a search engine with good returns because it’s a targeted audience.
Volumes might be low, nonetheless, very good if you’re targeting companies because most of them are still using windows computers and therefore their default browser could be internet edge.
You can use their marketing platform for the entire Microsoft network like Ecosia or LinkedIn Ads
Microsoft is a whole eco-system and I have put below so of the main channels where you can advertise:
from gaming with the Xbox to Outlook and much more.