New ACCM grad, question about maintaining Critical Care certification

I passed the Anesthesia Critical Care boards in 2022. To my dismay, I found it difficult to get a job that allows me to do critical care time, and am currently doing 100% OR anesthesia.

Does anyone know how long I can keep doing 100% OR anesthesia before I effectively loose my ability to do Critical Care?

While my ACCM board certification doesn't expire until 2032, is there a chance that I'll lose my ability to get malpractice insurance if I don't start working in the ICU soon?

Yes, I did write to the ABA about this. And no, their answer wasn't helpful.