I think covid has had a big impact on a lot of hobbies in the same way TBH. More people getting in, and that means more demand. But also shipping prices going up and making it cost more to get the same things to retail.
I'm also an avid plant collector and what has happened in the rare plant and houseplant communities is maddening. For $ hundreds people sell what is known as a "wet stick" cutting from a Monstera Albo Variegata that has no nodes and can never root to grow into a new plant, and the demand for this plant is so hight that ppl get duped and buy that. Ppl are stealing cuttings from botanical gardens. Retailers are selling "rare" plants now for stupid high prices. Retailers are also now smart to the fact that they can get more than double the true cost for certain plants, so they auction them.
Point being, it's not just this hobby, and it's at least in large part def a negative effect form covid.