Can you use the safe pal X1 model with electrum as a cold wallet?
That particular model doesn't have the air-gap signing support for p2bt/QR export/sign workflow that can be used as a workaround.
And even 'S1' / 'S1 Pro', its QR Code feature has an encryption factor which will only work on their official wallet app so you can't even use the Camera + QR code method if you decided to upgrade.
On the other hand, USB/Bluetooth linked wallet will only work if their developer write an Electrum-plugin (
easier said than done),
Then, they must send a Pull Request to Electrum to be officially included to the release binaries.