Is the Cadiz match a good idea for two La Liga "debutants"?

Hello, I hope my post is okay if it's in English (I only know just enough Spanish to get by as a tourist). My brother and I are visiting Madrid next weekend (it's my first time, his second time), and I'm looking for things to do. We know all the museums and parks, et cetera. I thought it might be a fun experience to go to a La Liga match. I follow football but do not follow La Liga closely. He has zero interests in football or any sport but he is an open-minded person. So I might buy us tickets to the Atletico game.

Now, we do not speak Spanish (just English and French). We are both perfectly functional adults, so I'm sure we're very capable of navigating around the city, and so on. But I don't know how "intense" a La Liga match can be, or an Atletico match. If it's the type of environment where there's a lot of contention or controversy or tension among the fans, maybe I will wait until my language skills are better. But if it is the kind of experience where two foreigners with no adfiliations can watch a game and have a beer without much trouble, then I would love to go.

So I welcome any advice on whether it's a good idea for us, or any general advice for those going for the first time.

Gracias a todos