It is my understanding that Microsoft has previously tried to purchase Docker. Despite me having problems with companies buying up each other, I wouldn't be surprised if Microsoft revisits, or already is revisiting, buying Docker.

Being a heavy Visual Studio Code user, I have centered my personal development around Docker containers using VS Code's Devcontainer feature, which is a very, very nice way of developing. All I need installed is VS Code and Docker, and I can pull down and start developing any project. (I'm not there yet for all my personal projects, but that's where I'm headed.)