Yes, it is normal to tinker with new stuff to get acquainted with it. It is, however, not the same thing as publishing results of that tinkering on e.g. github, or blogging about it as if you want to break some posts-per-month record.

I do not get this obsession with putting everything out there. I have a huge local directory with my old test programs, PoCs, started but abandoned ideas, etc. I regularly try new stuff, new libraries, programming languages, what have you. But my github account is empty.

The internet needs less stuff on it, not more.