Or just use a VM (e.g. virtualbox or vmware) with encrypted virtual disks and the guest vm not connected to the internet.

HWWs are devices that can be hacked like any other device as the chance that zerodays or clever tricks exist to exploit a device is > 0. The question is how big the attack surface is compared to a stupid simple setup like using Tails and an old laptop or encrypted VMs + electrum wallet.

Seeds can be stored in the cloud (yes, they can be stored securely): encrypt them using AES-256 and a password > 18 chars, then base64 the binary and store it as a secure note in a vault (bitwarden secure notes). Honestly, I don't want anyone find a metal plate with seeds stamped into it in my backyard or at the oak tree.