Is any hardware or software wallet which is safe to keep large amount of BTC safe and secure?
If you have a lot of bitcoins, you will find a safe way to keep your bitcoins safe. Enough to store any open source bitcoin wallet offline, unless it is securely stored. Open source bitcoin wallet is very safe for offline.
Something like a ColdCard, could do the trick. Although, pretty much any open source Bitcoin wallet is good enough for storing offline, as long as its stored securely. Obviously, hardware wallets allow users who might not understand the security risks, secure their Bitcoin to at least acceptable levels, right off the bat. ColdCard is a little more complex, and could potentially introduce errors if someone isn't entirely familiar with the process.
Coldcards are secure, but Coldcards use a variety of tactics to use their intelligence.
Hardware Wallet This is definitely a secure wallet. Those who keep Bitcoin safe here don't have to worry. And the problems that are at risk are the ones that they take seriously. They are only safe if they are fully informed about the process. I agree with your words. Hardware wallets they easily secure. But the cold card is a bit of a hassle because they keep it safe through tactics.