How do you buy quants on Ledger?

Could you please elaborate on the process of purchasing quants on a Ledger device? As a cryptocurrency enthusiast, I'm curious about the specific steps one would need to take in order to acquire quants and securely store them on a Ledger wallet. Are there any prerequisites or special considerations that I should be aware of before proceeding with this transaction? Additionally, how does the process of transferring quants from an exchange to a Ledger wallet differ from other cryptocurrencies?