MS clearly as a company is moving into being a primarily cloud-services company. Based on comments from MS I have seen, I believe they see the long-term future of gaming as primarily online streaming-based, not traditional console-based.
So does Sony, that's why PlayStation Now exists, and is still expanding. It's a service that while not very popular or profitable now is being used to build the foundations of their cloud-gaming future, post-ps5.
LTD: PS4 - 125m, Switch - 110m, XBO - 51m
2020: PS4 - 9m, Switch - 22.5m, XBO - 2.5m, PS5 - 4.5m, XBX - 2.8m