Anyone have tips for using Bermuda Grass Fertilizer?

I've been trying to get my Bermuda grass to really pop season, but i feel like I'm doing something wrong with the fertilizer. Some people say to apply it in early spring, while others say wait until it's actively growing. What' s worked for you all.

I've tried a couple of fertilizer, but I can't tell if I'm overdoing it or underdoing it. Also, any tips for patchy areas? I'm thinking of switching to organic fertilizer, but does it actually make difference compared to synthetic? Honestly, just trying to make sure I'm giving my grass the best care without overcomplicating it. Would love some advice?