It might be interesting to run community challenges for the duration of a battle pass season such as “Play 10000 games”, or “Finish 10000 challenges”, or “Complete 25000 activities”.
Whenever anyone in the community completes a challenge, it would increment that counter, and everyone else can see the count rise.
It would be a form of progression that the community as a whole can contribute to, and see their progress, and kind of see activity within the community itself.
The reward could be a similar kind of emote to challenge emotes, or maybe battle pass experience.