@TeamYouTube I launched memberships in my channel a couple of days ago and I've been flooded by comments that there is no join button for a lot of my viewers. What gives?
Currently, the 'Join' button may not be visible on some videos & on the iOS app since it's being rolled out to a small number of creators as an experiment. Try adding "/join" at the end of your channel URL to link directly to your membership offer window. Keep us posted!