Because I want GitHub to be agnostic and not pushing me towards anything?

This was always one of the core worries about GitHub and Microsoft. Microsoft will not leave GitHub alone. It's too important to developers, and no matter how much they say "we won't touch GitHub", nobody (rightfully) will believe them.

Not OP but I think some people think that Microsoft might make it more difficult to use other services with GitHub rather than just streamline it for Microsoft. I don't think strengthening Microsoft + GitHub integration is a problem and is probably smart for them to do. They just should not and probably won't make it prohibitively difficult to integrate with say AWS or GCP.

I'm assuming MS knows enough not to break existing integrations, but they could build in a direction such that Azure-based stuff becomes a "first, best" integration with GitHub.