Yes, but likely they will then "extend" Linux so if an dev is using WSL to develop a linux project you will need to install MS things on your production enviroment, likely in the NET Core world... I am sure this will happen with the full support the Linux Foundation whom they paid off. It will also come by default in Azure I am sure
After they "extend" with MS open source then start to require just a few closed binaries, that is not a big deal right, for the functionality... see VSCode as an example of this in modern times. This likely will be a paid feature unless you use Azure where it will be free...
I don't really see that as much of a concern. If Microsoft announced plans for world domination tomorrow, all I'd need to change in my workflow is which fork of VS Code I'm using.
After they "extend" with MS open source then start to require just a few closed binaries, that is not a big deal right, for the functionality... see VSCode as an example of this in modern times. This likely will be a paid feature unless you use Azure where it will be free...
and before long we enter the Extinguish phase