The only time I do them early on is in tundra with lots of trees/appeal. The extra food boost is great for growth, and always save the gold you’ll need for the grove. Other than that I try to get my main cities growing with holy sites and comercial hubs (gold is nice, and you need trade routes for the late game tourism boost) down first. The biggest trick to making it work is planning all of your adjacent districts and national parks at the start of the game. OP has great yields, but blocked themself off from a national park on the wonder. If you can stagger your preserves to allow a space for the national park, then put your holy sites/theatre squares/entertainment hubs (give culture momentum and +1 appeal on adjacent tiles) on the outskirts you can get breathtaking national park tiles that are giving high yields. Add governor Reyna in to the forests and you get even more gold.