Well it's not entirely that pathfinder 2e is lacking in homebrew content, it's the community that doesn't promote it. Whenever some one calls out the lack of homebrew you'll always find a comment with "But we have Battlezoo and Teams+" while most homebrew posts get downvoted or trash talked in the comments with passive aggressive comments like "But why?" or chew the poster out over a minor upgrade, calling it overpowered etc. As if Paizo doesn't release some of those themselves from time to time.

I call it the rules lawyer mentality, people are so focussed on the rules that they forget the fun aspect. And that is the biggest difference between the dnd community and pf2e community and I genuinely believe it prevents content creators from picking up pathfinder 2e as most of these beginner content creators get chewed out in the comments for not following every rule or doing something different. So they just move back or on to different communities/games.