YES!! i was about to make my own post and saw this :) i often use google chrome bookmarks to save specific primary/secondary listings that i may not be able to buy right now but would like to keep in an eye on them to give myself best chance to buy when i am able.

So within activity tab, i think itd be really nice to have a "favorites or bookmarks" which is manually populated by user pressing a heart or star (or whatever UI trigger) on the NFTs primary/secondary listing page

it would be actually pretty cool!! Just today i had my eye on a piece i totally love but cant buy rn. Like a wishlist feature<3