Absolutely Not! They pay you. However, some agents/ managers get paid to go “actor showcases” that the actors pay through the nose to be in. Some VO casting agents also give classes and supposedly “cast” from those classes.
Once you have 10k followers, Instagram will make it easier for you to get people to your website via Stories with the swipe up to link feature. Swipe up is the only way to get a direct link from your Instagram to your other web properties. And, it’s available in STORIES, if you have 10k followers.