Sadly, accidental complexity is a common theme among react devs, not just ui libs, but also react-router, redux, redux-form, even tanstack useQuery() is way over-engineered and the core idea can be implemented in <50 lines and then you own the code and can make project-specific changes.
Maybe that's the biggest issue after all, people being lazy, expecting to do npm install and being able to reuse everything in any situation. Except that it almost never work like that and a lot of damage is done in the name of it... </rant>