What are the movies that haven’t gotten releases you’ve wanted? For me anything I’ve wanted has gotten a release lately, but I don’t watch the most niche movies. So perhaps that’s my confirmation bias

They come out with new releases all the time. Brick and mortar stores just don’t always carry them. In the past year Target and Best Buy stopped. Here’s a list of physical media that came out this week: https://www.blu-ray.com/news/?id=36930