I'm a fan of 2-of-3. Ideally, you'd have 1 hardware, 1 mobile and 1 in encrypted cloud backup or with a trusted family member.
I want security, self custody and viable options for recovery.
The scenario that this doesn't cover is the "What if my house burns down and I lose 2 keys". To resolve that scenario, we need to advance multi-sig UX (which is also a part of what I'm currently working on).
Regarding "house burns down" ... couldn't you just duplicate the hardware wallet and keep it in a vehicle or another third location? Is there a threat vector there that I am missing? Are you self-hosting your "cloud"?
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You could, for sure. I'm not keen on leaving a key in the car, but you could certainly duplicate it and store it somewhere safe.
In terms of cloud, I'm currently building a product for this. Initially not self-hosted but working towards that option and the fun UX things we can do like key sharing to a family member etc.
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