It doesn't make me feel great about them owning the platform where almost all open source software is hosted, and one of the most dominant tools for writing code.
Microsoft's embrace of open source is about making their PaaS offerings universally compatible, and about trying to meet developers where they are. They will continue this strategy as long as it remains super profitable; ie as long as great developers have a preference for OSS, and as long as OSS remains a key part of the software ecosystem. If you want Microsoft to remain open source friendly, those are your battlefields.
It's not about MS being worse than the other tech giants, it's about opting out of these kinds of tools in favor of more open, less corporate controlled tools in general.