Didn't Linus once say, "If we get Microsoft writing programs [or was it Office?] for Linux, then we've won".
There's MS Office for Android, which is Linux, so, victory?
There's also .NET, PowerShell, Teams, SQL Server, probably a few others I'm forgetting at the moment and, almost certainly, more to come in the future.
The Microsoft Linux Kernel that ships with WSL2[1] was by far the biggest "wow" moment for me. I honestly never thought I'd see those 3 words together in my lifetime.