I think it'd be helpful to have a notification history that you can look through after you've dismissed a notification. Sort of like what Flight Rising does right now
Notifications go away completely after you accept them, so it's hard to keep track of what's happened recently, especially for people with poorer memory.
It'd really help keeping organized as I've noticed this a lot while selling customs
Maybe next to the "Claim All Notifications" button there could be one that says "View Notification History" that takes you to a separate page. It could even be connected to the messages page through a second tab