Why would it keep the notification history after they’ve been dismissed, though? There’s no user-facing way (that I’m aware of) to access a history of dismissed notifications.
The double-tap gesture is something I was very excited about and have completely forgotten about since getting my watch. The caveats around what it takes to activate it (screen activated and facing vertically) are just so great, you wonder if anyone at Apple actually tried this and found it to be a better alternative to interacting with the screen. Their demo video actually does a perfect job of capturing just how ridiculously theatrical you have to be to get it to work: https://support.apple.com/guide/watch/use-double-tap-for-com...
That’s the bummer for me. The primary place I’d like to use this is surfing. Too much time to think, and too few practical ways to record those thoughts.