90% of people should get the MacBook Air. It's lighter, cheaper, silent (no fan), and the M4 chip handles everything from web browsing to video editing.
For everyday tasks, the M4 Air and M4 Pro perform identically. You'll only notice the Pro's advantage in sustained heavy workloads like 30-minute video exports.
MacBook Air M4 15" is the best laptop Apple makes for the money. Only upgrade to Pro if you have a specific professional need that demands it.
Best for most people — thin, light, powerful enough
Best for pros — when Air isn't enough