My daughter is a book editor. She told me that authors need to have a strong social media presence before publishers will even consider them.
BTW authors: She just became unemployed due to a reorganization. If you know of publishers looking for editors or need a freelancer send me a message.
I find social media, particularly TwitterX, to be rife with scammers. I have no intention of building much of a social media presence. If publishers require that, then I guess I am forever out of luck.