Edge's History has the memory of a goldfish. It has a very limited memory - I keep having to manually find pages using my search engine Edge seems to forget them. The address bar often doesn't suggest pages that I've visited many times before. Perhaps this is to force us to use Bing? I think I read somewhere that it only remembers the past 90 days.
Compare this with Firefox which remembers basically ALL history, and the address bar always suggests previously visited pages accurately, even from a year ago, making it quicker and easier to visit pages you use regularly.