True Gibson and Wang have gone to recurring (officially per the credits). But in reality, Y&R often puts people on recurring when they decide not to use them much anymore. They never say "this actor has left". They always say "this actor will be used from time to time and we're so glad they're with us" but they never use the actor. Then, later on, maybe weeks or months later on, when the actor gets another gig somewhere, Y&R issues a statement wishing them well on their new adventure, spinning it as if the actor left on their own.
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They exception to that is Mishael who chose to leave contract status because of reasons she stated in her interviews.