Cancel, cancel, cancel. Sadly far too many have rushed in with the idea that freelancing actually means freemoney.
What you describe is not a Seller, they are not even a small s seller. They are a large S piece of
As already advised do some real due diligence on people before leaping. Reviews can be false, or plain paid for. Or maybe those buyers only have standards as low as the seller, neither of which are your standards.
Look at the Gig and particularly real delivered work. If they offer an external portfolio, go look at that. Take your time, is the style of the work consistent or are they one minute apparently one type of person and the next a totally other type. Like one minute Picasso and the next Steven King. If so they may be using someone else’s work not their own.
Take great care with the $5 style of seller. Every job has its universal value - like a real Ferrari is worth $250,000 or the equivalent in your currency, to assume that a real Ferrari will be $5 is to ask for trouble. Freelancing allows for some efficiencies - like I don’t need a fancy building with a carpark, public toilets, a kitchen, security guards, cleaners, neon sign, reception… but the work I do still takes time that draws on decades of training & skill of experience. That should never be asked or delivered at $1 per hour anywhere.
Shortlist until you feel a connection with a Seller (not the cliché they want to foist on you) and talk to them. Not asking for free demo work or picking their brains for what should be paid, but just see if you seem simpatico.