1Tb m.2 SSD cost 70 USD in summer 2025, and probably much less when bought in bulk as a chip. It doesn't make sense to install anything less than 1Tb in an expensive premium laptop. Or it should be upgradeable.
Apple's pricing is one of the reasons I am not going to buy their laptops. Expensive, and with no upgradeable or replaceable parts. And closed-source OS with telemetry.
> Lots of people more or less use their computer as a glorified web browser
For this purpose they can buy $350 laptop with larger screen.