Hi!
I've been using Upwork as well for a long now, in fact, that was the platform where I landed my first job as a CSR, it offers a wide range of work to those who want to work online, tho during these days, the competition is very tough from the skilled workers to the pricey connects. But from the easy work of data entry to the hardest task it is available their so yah I agree to what you said that it should be aligned with the skills.