Microsoft Ads (formerly Bing Ads) is a pay-per-click ad platform. It allows businesses to create and manage ads across the Microsoft Search Network and other Microsoft properties, including Bing.
Yes, Microsoft Ads can work well for ecommerce businesses. The platform helps online stores reach potential customers they wouldn't otherwise find on Meta & Google & build more effective audiences.
Google Ads tends to have a larger audience & has ad formats more suited to ecommerce websites in the form of shopping ads. Microsoft ads tend to be less competitive & have a lower CPC that Google Ads.