Any time I think about doing this, I remind myself of the news story[0] about the iPad Pro + Magic Keyboard being heavier than a MacBook Air. I believe it was thicker as well.

I’m not sure if it’s still the case, as they trimmed down the iPad Pro quite a bit, but I don’t think the iPad is that much of a boon for travel. For the size and weight, it seems moot. I’d rather have the keyboard and trackpad of a proper MacBook, full macOS, and a system that won’t fall apart. The last time I took an iPad on a plane, the person in front of me reclined, hit the iPad, and it flew off the magnetic keyboard and I had to fish around for it on the floor. Thankfully it didn’t break.

[0] https://www.theverge.com/2020/4/20/21227741/apple-ipad-pro-m...

But why? A 13" MacBook Air is smaller and lighter than carrying a tablet + keyboard + mouse. And iOS is always going to be more difficult to do real work on vs MacOS.