We show certain introductory JIT notifications only to new users a certain number of times. In a similar fashion, after showing a certain type of notification a few times, maybe we could start showing it truncated by default, like so:
You’d click to expand. If we wanna get real fancy we could even have some sort of tabs system for this, so that in those rare cases when there are multiple notifications at play, they don’t overlap, but instead they’re stacked in a row (until they exceed the width at which point the rest will be hidden, which will almost never happen because you’d need at least more than 2 notification “tabs” to run out width).