My MacBook has really only been for grad school work and professional things.
I use iPhone as my daily device and this is the device I use 90% of all time on non work-related tasks.
The only time I use my MacBook is if I need to apply for a job.
I use it for everything. Only pull out my MacBook Air for schoolwork/typing papers or long emails.
I use my iPhone 16 pro as my main device too for everything.
This is really fascinating to me. I program, compose, make films and web pages, stream, and so on. My primary computing time has to be at my main desk with a large display, a physical keyboard, and so on. But I've certainly guessed that the incredible evolution of portable devices over the last 15 years has nurtured many whose main device is their smartphone. It's good to finally hear directly from a few and learn you exist.
So most of those people want a large display phone as they do everything on it. This is unfortunate for people like me who find current phones too big and would prefer smaller ones.
That leaves me with you. ^ ^
I like having the palm-sized device (though it's the one I use least), and my favourite so far has been the first-generation iPhone SE. I'm currently using an iPhone 12 mini, which is much more advanced, and I appreciate that. But compared to that iPhone SE, it's quite a bit larger and twice as heavy!