TailsOS offers privacy for Electrum from a bootable USB, however I’m curious if maybe Qubes Vault with Electrum from a bootable USB may offer privacy and security?
Handy if travelling to have the USB cold wallet, to top up the hot wallet on the phone.
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If both are offline, in my opinion the difference is minimal. Tails will be way more comfortable to use in these conditions.
Qubes OS on an USB device is a bit of a pain to setup, and due to its heavy disk input/output you may have terrible performance, if you use an USB memory stick, it may die “quickly” due to wear (this depends on multiple factors though).
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I installed it on a external NVMe SSD and after using it two times it doesn’t boot anymore… Maybe I had only had bad luck, but I then installed on the internal NVMe…
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Does Electrum not require tor and networking to connect to block chain? Vault does not have networking. Whonix WS does and has a crypto wallet which seems to be what you are interested it. It’s not a bank Vault as banks require transacting. More like a key or document cell.
Persistence in TAILS is like a Vault you can choose to have networking or not (but you can also change Vault which defeats the purpose of Vault).
Qubes is all about controlling access: what PCI, networking or not, what level of rw permissions, etc.
I would either do TAILS persist for crypto or have a Qubes that is just the best hardened host for Whonix and that you don’t modify much otherwise since it may become vulnerable if you do whereas that is a lot less likely in TAILS.
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