[mouzogu]

Basically, you work on upwork for company X full-time but are paid on hourly basis and without any overtime or benefits.

This is what the article alludes to. So called "gig" workers at uber are constrained, the flexibility is an illusion. You are forced to comply and work a hard schedule or you will be punished by the algorithms.

So as a developer you are more likely to be average than exceptional, because the field has been commodified by the learn2code movement and bootcamps and therefore you are at the whim of the employer and dont have any flexibility. They can replace you in a heartbeat.