Venu 3 update issues and missing choice in Connect app

Got a new Venu 3 for Xmas. Seems really nice, but for some reason the watch wants me to update to v12.11 every other hour. Whether I select to update now or I manually go into the settings to do it, the watch restarts, but does not want to actually update, as the prompt remains. What do I do here?

Furthermore, I’m not interested in neither Snapchat nor Discord updates on the watch. An old YouTube-video tells me to go to «App notifications» in the Connect app, but I have no such choice. Anyone know how I disable certain apps?

Please see attached photos from the YT video vs. my app. It is the latest version.