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And when you decide to switch to Linux your VS becomes useless

If you already had cross-platform in mind, then I guess don't consider C#, or any .NET stuffs.

Use something like Java or Python, instead.

Anyway, MS don't force you to use their technologies :p

C# and .Net (both versions) are cross platform. Core being made from the ground up to be cross platform.

C# and .NET is cross platform. VS isn't.