A lot of us more experienced folk haven't done this in years. We can solve more complex, multifaceted questions, but those aren't asked. It's about speed with things from college. It's important we understand those, and we do, but that crisp sharpness is no longer there.
I will beat someone younger on hard problems which also involve threading, distributed systems, customer requirements, memory hierarchies, code simplicity, testability, business requirements, math, etc. but those aren't the interviews.
Even ML seem to be spot checks of trendy techniques rather than deeper questions about mathematical maturity.