I'm traditionally about as far from a "microsoft ecosystem" dude as it gets. The first MS anything I've touched in my career has been the last year or so in csharp, and I love it. Great performance, excellent language, sane architectures. ASP.net is awesome for APIs.

I use Rider from Jetbrains, develop on a mac, deploy to Linux on AWS, it would blow the mind of 2003 me to know this was the case.