As an owner of a MacBook Air, M1 8GB, either the poster:
1. Does not understand that most people use computers for different purposes then he does OR;
2. Does not understand the power the M1 processor has (which I'm sure applies to the M2 and M3).
The MacBook Air machines are for users who want to use a machine with long battery life (moving parts will reduce battery life) and who won't be doing sustained processor intensive work for money. Most consumers don't make long (30+ minute) videos, process a lot of photos at once frequently, or do memory/ processor intensive work for fun. Consumers use their computer as a communication tool, and a tool to make simple home movies, to make small modifications to photos, etc.
Even when intensive work is being performed, the machine still holds up. Last night I was playing with a recently banned emulator playing a game where you are a plumber having to throw his hat at things. I was getting about 45 to 50 FPS, and it was perfectly playable. Did the machine throttle? Maybe, but if it did, I didn't notice.