Is Alteryx a practical skill to learn?

I find it to be a very useful tool. However, only my current employer is using it. If I change jobs, I won't have access to Alteryx anymore and my skill with deteriorate with non-use.
It is unlike Excel where I'm sharpening my skills with it every place I work. Any software is worth learning for your career, but we humans tend to forget knowledge what don't use. Or I do at least, maybe it is just me. Your thoughts?

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