Microsoft uses a lot of different techs. Isn’t a lot of their cross platform and web code for office 365 build with React? That doesn’t mean they aren’t moving

Microsoft uses a lot of different techs. Isn’t a lot of their cross platform and web code for office 365 build with React? That doesn’t mean they aren’t moving forward with .Net or C#, but the main thing they want to sell to developers in 2019 is Azure where it used to be enterprise licenses for VS and windows server. And they don’t need C# for that. Also, they seem to be wanting Rust as a replacement for C and C++, so it’s probably mostly unrelated to C#.