Most of us have laptops for work only. We usually have conversations about ditching our laptops because we often associate it with the stress of our jobs. Being on a computer for me is almost the same as working, so if I can get away from my laptop I will do it.
Phones on the other hand are more associated with, well, everything else. Social contact, convenience, leisure (music, books) etc.
After I finished my master's the first thing I did was ditch my laptop and only used a smartphone for more than a year. Then I got a job with online marketing and had to get a laptop again because typing and having multiple tabs open were more convenient.
Take all of this as anecdote, however -- this is just me and my social circle. Where I live I know many GenZ who don't even have PCs (some don't even know how to use them proficiently). I however know a few GenZ who are almost PC addicts (gaming, hacking etc).