This is a spinoff of WandaVision — which was actually a pretty fun series, most of the way through — starring Kathryn Hahn’s character. It went through a zillion titles before finally settling back on Agatha All Along, which is, indeed, what it should have been all along; per Wikipedia, now they’re claiming it WAS Agatha All Along all along, and that the other announced titles were meant to be misdirects in the vein of Agatha herself. That smells like a huge pile of B.S. to me, but who knows. If the show is good, who even cares?