Hello all,

What really intrigues me about Bitcoin is being a true owner of your money, only you having access, being in total control of hard money.

I want to really take advantage of this and store my wealth in Bitcoin, and store the private key/seed for my wallet safely.

I however struggle to find a right wallet to do this with, and I'm also slightly confused in some aspects.

For example, a wallet like Exodus allows you to save private keys of your wallets, but it also allows for saving seeds.
Let's say I save the private seed of my Exodus wallet, how can I be sure that in 20 years from now, Exodus wallet will still be a working product, that I can download from a new computer perhaps and import my seed into? This never made sense to me, I'm depending on the creator of the software it seems to me.

The private key of my Bitcoin wallet is different ofcourse, but I do wonder, will this private key allow me to import the address into other wallet softwares? Or do I have to import it on Exodus?
One thing that also slightly confused me was the fact that when I request my private key from the Exodus wallet, it shows me multiple private keys and public wallets. Two public wallets starting with 'bc1q', and one wallet starting with '157okQ'. Which one would I have to save? When I make a request to receive funds in the wallet it shows my deposit address as one of the bc1q addresses. Will this be the address of which the associated private key is practically my money?

Thanks anyone for taking the time to help me.