I’m a blind user and I’ve only tested with VoiceOver on macOS Big Sur and iOS 14.4.2. It is mostly accessible on Desktop but the iOS version has a lot of things that are invisible to VoiceOver at the moment. On Desktop, there are a few items that you can’t find with keyboard navigation, like the right side drawer, but you can expand it when you find it with the mouse. I’ve posted this in the discord server as well. Hopefully it won’t take them long to fix it. I haven’t found any show stoppers with VoiceOver yet.