That looks about right to me. Indicates that you had good heat on the stone, but based on the top of the pie, not enough top heat.
Any of the wood or charcoal fired units are always going to take longer to get hot, etc. I typically have not been satisfied with a 15 minute pre-heat when I've used the Ooni, but that may just be due to my bread making experience that makes me wait longer to ensure the stone is thoroughly heated all the way through. I'm sure you'll be happier with the dedicated, gas options, as the are, indeed much quicker to get ready to cook a pie. Way more efficient, especially if you're just making one!
Enjoy it whatever you end up doing! I have found that pizza is a hobby that has endless roads to explore if you are into that kind of thing. I've got five dough balls using a sourdough starter that are sitting on my counter as I experiment with yet another dough recipe!
R