Is there still new shit to discover in mathematics that isn't here: https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_mathematics

I'm a normie and I don't understand the idea of "new math", besides finding another digit of Pi or something. I take my geometry, trigonometry, and algebra and go on my merry way. Of course I understand that there are more complex ideas such as calculus, complex analysis, measure theory, infinite cardinals, ect, but this has been a subject that has been observed and analyzed for millennia, so what more is there to discover?