on AWS in go-go years, Ubuntu with easy defaults and permissive licenses became the number one installed VM .. by a very large margin. The numbers were not even close.. like 15x more daily volume of VMs on AWS than the next closest three or whatever.. look for yourself. That in turn begat the very hot breath of MSFT upon Ubuntu-Canonical, which shows in the boot signing keys for Ubuntu, the MSFT-private partition type in the disk installer, and the WSL. MSFT influences can be seen in the push for always-on snap with libc and unattended-upgrades phone home and the like.
What Microsoft does, Canonical will follow in the Linux realm? This does read like something Microsoft would do.