I think you might be wrong
"This isolation mechanism will be available both on the Secure Element of Ledger Blue and its non secure MCU, with an Open Source implementation provided for the non secure MCU as we would like to encourage new designs to use ARM MCUs leveraging those protection mechanisms (such as the STM32L0 line from ST Microelectronics)"
"MALWARE PROOF
Even on a compromised computer, you can initialize your Nano S and confirm each transaction on the built-in display, protecting your assets against malware, theft or viruses."
Don't see what's wrong with Mycelium on your phone, record seed, delete app.
Yes it's free and I can restore anywhere in the world without having to worry about a USB stick.
Option 2 is Electrum on TAILS USB
Again, it's free!... And it's a USB stick
Plus no one is ever going to argue they can beat that option for security.
All these news toys. I suppose cashed up crypto kids have to spend it on something.
Whatever you feel safe with I guess.