Earlier quoted context omitted.
I think GitHub is generally safe as long as you have an exit plan for when it's no longer the place you want to be. Know where you're moving your issues and actions if you decide you need to leave.
Since the Microsoft takeover, the platform is compromised. It seems people have very short memories.
Do me a favor, look at Facebook [1], Apple [2], Amazon [3], Netflix [4] and Google [5]. Now tell me which one has more Open Source repos than MS [6]. I'll give you a hint... none of them. Sure, volume of open source repos may not be the best metric, but to say in 2021 they are enemies of open source with almost 4k open source repos is just dumb.
Hell, even the new MS terminal [7] is open source. They realized that FOSS isn't the enemy and is actually good for the tech industry at large.
[1] https://github.com/facebook [2] https://github.com/apple [3] https://github.com/amzn [4] https://github.com/Netflix [5] https://github.com/google [6] https://github.com/microsoft [7] https://github.com/microsoft/terminal