Ohh yes it does make much more sense to only push notifications when they need to be shown. Should squelch excessive notifications elsewhere eventual-soon, but I’m good with merging this here 
Re: collapsing notifications, it’s a shame to lose but… ideally we’d be able to do similar to other apps’ auto dismissal as a user makes their way through notifications on any logged in device, but that might take some extra gold plating. The intent is the same there to never have just a tide of stale notifications piling its way up. Again, it’s fine, but we need to revisit later, depending on how much pain it causes.