Tbh, Kaido was very impressive in this chapter.
Yamato definitely demonstrated Ryuo. You can even see her hardening on her arms with the usual black lightning stuff. It's definitely interesting that she's actually that powerful, her personality isn't still enjoyable tho...
People thought Yamato may be a dragon but I'm sure she rather ate the mythical white tiger zoan fruit since this makes sense in contrast to Kaido being the Azure Dragon who would be defeated by the White Tiger (Luffy, Yamato and Co).