As I understand it from the net, people complain about how useful their chromebook actually is. Dodgy apps not working as "real" software does..
Then people often has issues with the chromebook itself, often running slow, devices keep restarting, error messages (like "Os is missing" etc.), to cameras and microphones not working, issues with updates not being installed etc... I have even heard that some apps can not handle a screen larger than a mobilephones..
I never had any difficulty with these aspects, even when I was in college and university and very actively used my computer for teaching. I often used resources like
writix.co.uk/essay-examples/education to help me do my homework. Even with such intense work, everything was fine.