For anyone who would like to know more about designing proteins with a certain function, target, or structure in mind, the term to search for is "rational design."
As an aside, learning the precise terms for concepts in fields in which I'm a layperson (or simply have some cobwebs to shake loose)--and then exploring those terms more--is something that I've found LLMs extraordinarily useful for.
https://en.m.wikipedia.org/wiki/Rational_design