> they used to let you run Windows!
They let you run Windows when they were losing in the market and needed a path to migration for users of the winning platform. Once they started winning, they stopped.
Conversely, Microsoft refused to interoperate with Linux. Until Linux became the clear winner in the datacenter space. Now they have WSL and actually work pretty well as a cross-platform development environment.
Microsoft is being all kumbaya right now for those exact same reasons - they are hemorrhaging users to Linux and macOS. WSL only exists because of this.
In the 90s and 2000s, they considered Linux a cancer, and only kept macOS alive for antitrust reasons.