"Cheapest" but not cheap. A $400 Steam Deck can do 3 external monitors with an inexpensive MST hub and has a single USB C port.
The MBA is an extremely close competitor to the Dell XPS line too. And "Pro" doesn't even guarantee you more monitors. The $1600 M3 MBP is just as limited as the "consumer" Air.
Only if you ignore the shitty finger trackpad tracking on dell, windows (shit UX) or Linux (shit battery life and shit sleep/wake), and in general the real life battery duration in real life use cases.
