Not a huge LOTR fan but remember hearing Sauron's got nothing on Morgoth

There's a reason why Morgoth is Sauron's boss.

I know many people would say Morgoth is stronger for several reasons. As true as it may be, there's an oftenly overlooked factor, which is the fact that Sauron can create and Morgoth can mostly just destroy. Creation is harder than destruction. It's also the reason for why Aku is stronger than Goku Black.

Sauron only makes a powerful ring, let's not forget Morgoth can technically create too (Ancalagon the big ass dragon said to be bigger than whole mountains etc). So that kinda gives Morgoth another advantage, plus Sauron was outright scared going back to Morgoth when he knew he failed which shows that even he acknowledged Morgoth is more powerful.