What should you actually look for in a hardware wallet?

I see a lot of beginners asking “which hardware wallet should I buy?” but from doing my own research, I feel like these are pretty much non-negotiables when selecting one:

• airgapped capability Being able to sign transactions without connecting the device to a computer (USB, Bluetooth, etc.) reduces attack surfaces.
• open source or verifiable code If the code can’t be inspected, you’re trusting a black box with your keys.
• secure elements Hardware designed to protect private keys, even if the device is physically accessed.
• deterministic backups (seed phrase standard) You should always be able to recover your funds with your seed phrase, regardless of the device.
• no dependency on a single app or company Your wallet should work with multiple tools, not lock you into one ecosystem.

From what I’ve seen, some Bitcoin-only devices like COLDCARD seem to prioritize a lot of this, especially around airgapping and minimizing trust, but I’m still figuring this all out.

Are there any wallet security features that I should also be looking for?