Whichever *computer* is used, a desktop arrangement with keyboard, mouse, and larger monitor will always be the choice of those who aren't deprived, because the experience is better, the user interface more productive.
Even in futuristic movies where you see the glass or holographic screens and people reaching up to scoot thing around with their hands, that's not really an upgrade to have to keep moving your entire arm around compared to small wrist and finger movements.
Mobile devices are optimized for that use and have multiple drawbacks compared to a decent desktop for non-mobile uses... and "decent" doesn't have to mean high end or even modern, depending on how demanding the use. Posting on social media or a forum just isn't that demanding but even then, I can type on a regular keyboard, several times faster than on a touchscreen. The irony is that it actually takes more time to figure out how to concisely write less on a touchscreen, than to type more on a desktop keyboard that you're used to.
Most people I know, still have PCs but their desire is to just keep them running, maybe add a bit of snap by replacing a HDD with an SSD if the system is old enough that this applies.