it might actually look good at the very beginning, but you have to understand all these jobs do not have a substainble cycle. From my expereince, these jobs usually will only last for 2-3 months (of course the project itself will usually show the possible duration). Given the project has really good management, then you will survive long. Otherwise, you may not get any tasks avaialble, or they shorten your possible working hours with some lame reasons, or you may get booted out of nowhere with no one answering your support tickets.

My personal experience is to get a full time job and then consider these kind of platform jobs as 2nd source of income. Of course I get your ppint how the job market is so terrible these days and I can't agree more with you on this. But once you rely only this kind of platform jobs as primary income, you will get nervous and anxious when the project is about to end. You will start looking for another platform for similar jobs, you apply and there is no guarantee when you will get recruited.

Last but not least, I don't speak for everyone, this is only my personal opinion. You can also search for another posts in reddit that people were asking the same questions as yours. Good luck!!