Still no reliable, widely available test to determine the actual level of antibodies patients have, as far as I can tell. Been following Johns Hopkins University research studies on solid organ transplants and the level of protection is not very high. They are still recommending masking, distancing etc. Not sure where Evusheld puts you on this continuum. Here's a link to JH JAMA study
https://www.hopkinsmedicine.org/news/newsroom/news-releases/organ-transplant-recipients-remain-vulnerable-to-covid-19-even-after-second-vaccine-dose