Not to mention outright sabotage when you're not in their ecosystem.

Use Linux? Your browser default user agent says you're on Linux? Word 365 will now randomly stop saving which just quietly deleted some of the text you wrote previously

I can write up a whole list of more sabotage, but just read this as a much, much bigger example: https://en.wikipedia.org/wiki/SCO%E2%80%93Linux_disputes

Microsoft execs should have been jailed but in the US it's all fine as long as you're rich.