definitely some wallet like trezor, that at least have many measure are the way to go if you want to avoid your money ever being stolen.
I just don't think that there are any other safer way to avoid your money being stolen at this point, generating wallet for paper wallet sometime also seem futile considering that you have the chance of losing access to your wallet if you lost the paper wallet.
so i think if you have hardware wallet which you do, then just stick with it, its by far best solution that you got, the fact that many other also use it means its quite effective.
Yes, the design and all codes of open-source hardware wallets were verified by many experienced people. I can 100% trust these community supervision.
I wonder that I will buy a bitbox, and then half in bitbox and half in trezor. My ledger will be discarded in near future. There can be no security without supervision.