I have been trying to figure this out, how does one create cold storage? Or do any crypto wallets have this cold storage? Why are most people advising others to go cold storage?
Easy way would to do this would be to buy some hardware wallet, but you can also use your old laptop with freshly installed linux operating system and disconnected from internet, best with removed wi-fi card.
Best hardware wallets for this would be Passport or Keystone, because both of them are not even connecting to other computer in any other way except with QR code communication.
Coldcard wallets should be used for storing larger amount of coins and they are not meant to be used for smaller daily transactions.
They are better compared to hot wallets because they are harder to hack, that is why all centralized exchanges have both cold and hot wallets.