Isn't the whole point of Ingress abstraction, that you can switch providers (like, from nginx to traefik, or aws-alb) and everything more-or-less works the same

Isn't the whole point of Ingress abstraction, that you can switch providers (like, from nginx to traefik, or aws-alb) and everything more-or-less works the same? I know there can be some custom annotations or whatnot, but the basic stuff should stay the same.