I would suggest you build in o11d mini with the same components to give a real comparison. Both for positive pressure with no exhaust fans. The case is cheap so it shouldnt be a problem.That is the plan, eventually. One issue I have right now Is waiting for water blocks and stuff to arrive, as I plan to water cool my own build for exactly this reason.
O11d and its derivatives are known for not so great temperatures so you should shine as well.