They are also one of the most major contributors of CPython, which is the default implementation of Python. Especially in London they have a dedicated team, Faster CPython team, which (unsurprisingly) concentrates on improving performance of CPython. The team contains big name like the creator of Python, Guido van Rossum.

Typescript, vscode, npm, github and more

https://opensource.microsoft.com/projects/

They also added a “Sponsor” button to Github which while I have mixed feelings about it, does help open source projects thrive.

TypeScript, NPM - doubling down on crappy language and rotten foundations. You could argue that at least they are helping to manage the damage to the industry.

VSCode - misspending money to prove JS can be used to build native apps? We did not say you "could not", we said you "should not".

GitHub - they just bought that, thanks for not ruining it I guess.

Github, NPM have all the signs of EEE. For Github they already gave the misery of PAT and TOTP. Corporate hoops planned for NPM as well. Especially sad, as NPM is/was the best package/dependency management system ever created.

TypeScript and VScode are there of course to make all programming as horrible as it's on Windows.

Not the person you were asking but they open sourced .NET and gave us the language server protocol