For years I worked on a single 16" laptop screen, because I was constantly on the move. It was fine. Then the pandemic started and I was stuck at home, so I started using an external 27" monitor instead (single monitor) and then I picked up a second 32" monitor.
Now I use 9 desktops across two screens, and it's a lot better. I'm much more productive when I can see everything at once.
I suspect I'll readapt to a single screen as travel picks up again, but I really do enjoy my two big screens.
Not unlike my situation -- Loved working on a 13" laptop screen (with 4 virtual desktops to help with organizing), but a change in my duties at work had me working with 2-3 large spreadsheets at once, so I went to two large external monitors side-by-side and it's a god-send. I'd still prefer a small computer in my lap, but sometimes the job is easier with a different tool.
Now I use 9 desktops across two screens, and it's a lot better. I'm much more productive when I can see everything at once.
I suspect I'll readapt to a single screen as travel picks up again, but I really do enjoy my two big screens.