Apple ID and changing email providers
I feel stuck with my email provider, because I do not want to change the email address that I use as my Apple ID that comes from that provider and (am I correct) that the email address used for the Apple ID needs to be operational. That I can use a nonfunctioning email address as my Apple ID: correct?
Reading Apple Support articles on changing the Apple ID when it is an email address; changing that email address that is, seems that it effects so many parts of the Apple system. Is there an article that is perfectly clear ALL that needs to be changed when one changing there email address (Apple ID)?
MacBook Air, macOS 12.6