And it's still not as cross-platform as Java is, or pretty much all other tech stacks. FreeBSD and commercial UNIXen are not supported at all. If you prefer to develop on macOS or Linux (hi there), you don't get access to many Windows-only tools (mostly for debugging and performance measurement). Microsoft only cares about other operating systems to inasmuch as you can host the resulting application there, but really expects you to develop on Windows. Which makes sense... for them.

For Linux and macOS you can use Rider and CLI tooling (as expected for most other langs), VS Code is up there but obviously does not come with profiling or advanced debugging tools.

The bias does exist but it's going away, especially that now a lot of developers are moving over to M-series macs.