Thank you very much,
but I didn’t mean for the registration forms but for the post option field, this one for example → https://prnt.sc/hRjDk71OeW6o
My requirement would be to leave the behaviour unchanged with the option for the editor to choose whether or not to limit the post. While in two other CPTs (e.g. books and videos) having pre-selected the limit to users with role XXX or YYY.