Lol, I got it before I reached 60, I bet everyone already has this mount
I got it before level 60 but it was not easy. I got the mushroom drop, visited Wowhead to learn about it, and decided to set out for the Damp Loam. It was very challenging just getting there without flying (traveling into a blank area of the map!), and I died to Humun'gozz. When I returned to my corpse I joined a player from the other faction in taking him down. Good times. I could have easily missed it, I know I'm still lacking a lot of Shadowlands mounts. Cheers for "12 days of mounts."
Ribbit ribbit.I had to. Don't flame me.
I got this one, but I don't think I planted the 'shroom. I think we were flying by when somebody else spawned it and helped kill it.