The sequel datapack to Funky Flora, "Blooming Biosphere" has been released! It is available for 1.20, and I highly recommend using it in favor of funky flora.
Funky Flora is a datapack for 1.19 and 1.20 designed to improve vanilla overworld biomes with new and improved trees and fungi. As of now, all common biomes have received an overhaul! More may come in the future. This pack has been designed to be vanilla friendly, and make every biome more fun to explore and settle in.
This datapack is compatible with Tectonic. Probably. Otherwise, this should work with other worldgen datapacks/mods that do not modify vanilla biomes.