And another question that came to my mind while reading the OP was , why do i need to download the entire bitcoin blockchain data when I am not a developer? I mean what is the essence actually, I personally would prefer to keep it simple just as I have always kept it from the beginning, that is, buy bitcoin from exchanges, move them to my non custodial wallet for holding, and if for any reason I decide to sell, I move them back to an exchange and sell, its that simple .

I probably will need to become a developer to understand the benefits of downloading the whole bitcoin core network to my computer.