Graphics and design pro users may need more that that easily.That is an important business segment for Apple .
Yeah I guess for "business" users who are only storing office documents 2 TB is plenty, but as a home user, I bought into iCloud Photo Library and I'm about to pass the max 2.2TB storage limit of iCloud and will have to switch to Synology Photos or something
You could have the 2TB iCloud storage add-on and also the Apple One with 2TB to get the total of 4TB.
That's only available in a handful of countries (ones that have Apple News or Apple Fitness+ available), and not where I live.