I'll chime in again.
OP, technically you are right, Switch is not a hybrid, it's a handheld. Technically.
There's this thing with PCs that's been around for decades called "mobile workstation" of "desktop replacement computer (DTR)" - basically just a laptop, but usually larger, bulkier and more powerful. Nowhere near as portable as standard laptops. Nowhere near as powerful as proper desktop.
That in the nutshell is what Switch is when it comes to consoles - handheld built to serve as home console as well. It's neither very good handheld, due to very limited battery life and bulkiness, nor home console due to limited hardware inside of it. But that is what it's created to do.
Is it a hybrid? In the same sense DTRs are. Personally, I wouldn't call either a hybrid, with DTRs being type of laptop and Switch being type of handheld. But it does differ from other handhelds in its design purpose. Well, apart from Nomad I suppose, though I'd say Switch's dock and seamless transition from one mode to the other by just sliding it in/taking it out of it is what really differentiate it from Nomad.
So "Home Console Replacement" maybe? HCR?