Coddiwompler59 on Nostr: If keeping your private keys safe and off any computer or smartphone, and you use an ...

If keeping your private keys safe and off any computer or smartphone, and you use an external hardware wallet [I use a Trezor] or a Yubikey for U2F...
Why should it be okay to have softwares - even Nostr, to ask and keep your private keys on your computer or smartphone.
Doesn't sound logical to me.
If I want to use an ulimate safe and decentralized software, I would want to have my hardware wallet or at least a Yubikey generate my private key.