u/normal_default

Hi! I'm relatively new to Pathfinder, mostly familiar with the rules but picking still up pretty niche details as I try to convert my campaign's setting from D&D5e to PF2e.
So, the humanoid trait; is it meaningful at all? Are there things that specify they only affect humanoids, much like how healing strictly doesn't affect constructs?
I ask because I'm currently designing a mechanical golem-like ancestry, I was thinking of a lv 1 only feat that allows them to be quadrupedal instead of bipedal. However, I'd like for it to have some actual mechanical benefit and not just be a flavour thing. I could always go the route of increased speed or something simple like that, sure, but I'm hoping for something a little more unique.