I’m dumb and need my solflare + ledger relationship kind of explained

As title suggests.

What i’ve done is I created a solflare wallet, and then I believe I attached my ledger to it about 2-3 years ago. I’m getting kinda panicky that I’m forgetting my keys to my actually wallet, so in case my nano dies, I want to be able to be sure that I can still reach my wallet.

I believe I have my keys, so i’m going to transfer all my sol to my exchange to which I buy/sell crypto on, and then I’ll try to manually recover my account. However, the thing that I need explained is, is that 24 password to my ledger, or to my solflare wallet? Is it both?

I really like the nano because before I do anything on my solflare wallet, I need to have my nano plugged in to give authorization, so therefore I never really thought about what the keys were to my wallet. Can someone dumb this down? I’m embarassed writing this lmao