OpenSea has just released an overhaul of the rewards portal and added "Voyages".

TLDR:

You get XP for using certain features in OS2, similar to a quest board.

Voyages (quests) have five rarity levels with varying amounts of XP.

You can also connect your X account for social quests.

Completing voyages will earn you treasures.

Those who used OS2 during the beta (until today) will receive one of six different treasure tiers based on their activity, which are now live on the new rewards portal.

Overall this looks pretty cool imo, I like the move away from volume based XP to a more gamified quest based approach