But now they aren’t all stateless and it’s a good idea to use multiple devices of different makes in multisig. So now do I need a Cold Storage Device (seedsigner)and a Signjng Device (Passport, Keystone, etc).

I’ve just never had any confusion calling one a hardware device with a newbie. Signing device also makes sense. It’s just learning how to use it.

I’ll give you that cold storage device is less bad than air-gapped bitcoin computer though.