Been there. Started as an MS dev and learned a lot programming straight Win32 in C++. College bridged me into Unix, and OS X pulled me in full time. (I prefer Unix now generally). Playing in other ecosystems is fun. You learn slightly different ways of thinking about things (process-centric v. thread-centric), and the toolchain experiences are vastly different. But it's just a stack. It's a really crappy thing to get passionate about, because it's just a set of transient APIs. It's here today, gone tomorrow.

Instead, you should consider trying different programming paradigms entirely. Investing in skills themselves yields disproportionate returns that you can apply to whatever hip thing every insists you must use. The tech industry only moves fast if you're trying to learn every stack everyone's salivating about...which usually isn't that different from what's already being done.