It's the usual rabbit hole if you search for it, but there are some useful comments here: https://astronomy.stackexchange.com/questions/58610/would-it-be-theore

It's the usual rabbit hole if you search for it, but there are some useful comments here: https://astronomy.stackexchange.com/questions/58610/would-it-be-theoretically-possible-for-something-to-orbit-a-black-hole-inside-it#:~:text=There%20are%20no%20closed%20orbits,away%20from%20the%20black%20hole. https://astronomy.stackexchange.com/questions/58610/would-it... The way I see it is every surface inside an event horizon is another slightly "stronger" event horizon