I might be misremembering, but weren't hybrids sub-species, so you could just integrate them away if you wanted to?I don't want hybrids to return after we've only just, after nearly a decade, got some QoL features for subspecies integration. If hybrids come back in then all that goes out the window since our species lists will, yet again, become completely clogged with new species with random traits made by the AI.
Well, unfortunately, the tooltip still seems stuck in 3.14:Does it "spread" the growth, or add each species together for purposes of logistic growth?
I.e., if you have N pops of Type A and N of Type B, the growth rate of each is n% before Xeno-Compatibility but 2n% after. If it works like I think it does, it's a multiplier on pop growth equal to the number of species on a planet...plus another 20%.

But I imagine it's indeed supposed to add their number together for logistic growth, so that they don't suffer slow growth from too low pops?