How does the traditional Spanish dish "Fideuá" differ from "Paella"?

Paella is a tremendous amount of fun to make. The main ingredient in paella is rice mixed with seafood and saffron. Fideua uses thin noodles instead of rice but also has seafood and other ingredients. Both use a large flat pan to cook the ingredients. They are first cooked on the stovetop to give them a golden brown and then cooked in the oven to complete cooking. I can only imaging that Fideua is a delicious as paella!

https://culinarybackstreets.com/cities-category/barcelona/2021/fideua/