ye, it's kind of really well established that wax vs tony is not a fair fight. aside from aluminium/metal less suits he can also shoot plasma/energy bolt that wax can't push and probably he can fly so high that he will just snipe wax out of orbit with wax being completely useless. maybe we should include environment when we suggest battles?
I checked out about the Gauntlet and Infinity Stones and you're 100% right. they give you complete control over time space matter life and what not in the entire universe and since Harmony barely have that kind of power in his own planet I guess you're right, but I don't think even Adonalisium is that powerful, how thy even beat Thanos with that power???????