Yes, very frustrating of TiVo. From the Edge and Mini pages on the TiVo website they show HBO, Disney+, and Peacock as apps that are available. But when you dig into the details in support, you find that those are only supported on the Stream4K.
I just wish they'd make an app for the Stream4K that would allow it to access the TiVo Edge like a mini would. I'd prefer to run the Edge headless in the network closet and only have a single source device at the TV to have access to all streaming apps and local DVR, with all the season pass features and voice control. But I understand TiVo has already said they won't do that either.