This is going to vary by area. In various locations I've lived, all in the developing world, phones are used for mindless social media and games, desktops are u

This is going to vary by area. In various locations I've lived, all in the developing world, phones are used for mindless social media and games, desktops are used for everything else. There are some cultural things that might make the numbers look misleading or just generally be very difficult to measure. For instance internet cafes tend to be ubiquitous in many parts of the world which provide easy and extremely comfortable access to high end computers which people in many cases use effectively as their own. With prices that start at some pennies per hour, it also often makes more economic sense in many cases. Another big issue is that 'computer malls' are also still a thing. Think something like Fry's, but 6 stories tall and full of nothing but independent shops. These places drive two confounding issues. The first is that they build [lots] of computers a la carte. PC sales figures only come from major distributors like Dell, HP, etc. So even though there are millions of PCs sold at these malls, it'd count as 0 by most metrics. And another factor is that people tend to repair/refurbish/upgrade their computers rather than buy new ones. These malls again facilitate such things at very affordable prices. I can count the number of tablets I've seen on one hand.