You're wrong in that temp contracts have different sorts of terms. Full term temps can usually only work with one hiring customer but that is not the only model

You're wrong in that temp contracts have different sorts of terms. Full term temps can usually only work with one hiring customer but that is not the only model. By taking a cut of the salary as a fee, websites like freelancer and upwork are temp agencies. Also, upwork is a shithole. You should really not use them. I spent 2 months trying to set up an account there as a freelancer and they were complete dicks for 2 months straight. They refuse to adhere to the constitutional laws of the united states where they are based, and their support department is mockingly hostile to their freelancers. I made a broad generalization in my first comment about all of those websites being the same. Obviously I haven't used every single one, there are hundreds of them. But the ones I have used have all been the same. It's obvious you want to use them, I strongly encourage you to stop using Upwork and look for one that treats it's contractors better.