Hello,
Safepal, Ledger, Trezor say they don't keep a backup of my 24 words and they will not transfer my 24 words to their servers.

Because I still need to connect the above hardware wallet through the app, PC, every time I need to use them.

This makes me worry they might store my 24-word recovery phrase is randomly generated by the device and displayed when during setup, and then they will be transferred to their server.

So how can I be sure they're not lying? Is there any way to check this?