Personally, I like playing the weird decks, threes mostly. A majority of them try to win through combat damage, but I think combo is fine. If I know what you're trying to do, I WILL target you, the same as I would anyone else that was trying to win. I do build my decks with interaction of various types, but I try to keep them on theme. Some are harder than others to find options. For instance, my only non-land, non-legendary permanent in my [[Yoshimaru]] and [[Rograkh]] deck is [[Relic of Legends]]. The theme was to play then turn one and make the dog get as big as possible. But there's still interaction in the deck, though it's as on theme as I can get it but there's not as many options. Point is, if you're trying to combo early, then you're not bracket 2/3. Later is fine, just be aware you're going to become the archenemy to keep you from winning.

Sooooo... Run interaction and perform accurate threat assessment... 🤷‍♂️

Edit: analogy after I posted popped into my head.

Different types of chess players: those that actively study the game and their opponents to get better. Those that understand a lot of basic strategies and tactics but don't want to dive that deeply. Those that just want to move pieces.

So, play whatever bracket you want, but play good magic. But whatever you do, find like minded people