In order to keep my cryptocurrencies as secure as possible, I only interact with those within a virtual machine located on an encrypted USB stick. I own both a Ledger Nano S and a Ledger Nano X, which connect using USB. Also I don’t use libvirt for this as I want it to be as easily and quickly usable as possible. So here’s the secret formula in order to access those hardware wallets from a GNU/Linux KVM VM via USB pass through: