So, fewer storage options, less storage overall, no premium ceramic versions, inferior design, fewer color options, worse color options, no major camera upgrades aside from the Ultra... overall I'd be lying if I said anything other than I am disappointed in this S20 launch. Considering 5G isn't widely usable yet, the only upgrade for someone like me that was never going to get a phone as large as the Ultra is that 120hz refresh rate.
Granted, some of these things are subjective, but in some ways the S20 is indeed objectively worse than the S10, not just disappointing for a new flagship. This is coming from someone that really likes Samsung's products and have owned 9 of their flagship smartphones by my last count.