The Coldcard situation is insane.

My conclusion after watching it is that bitcoin is like any other property. You need to stay vigilant and do the work.

Dont trust, verify.

DYOR and use all the security you can to custody your funds and at the same time keeping it as simple as posible

For me the best aproach is to use one or multiple open source hw wallet with passphrase. Best seedsigner or trezor

For more advaced users a multisig setup