How does renting a car in Dubai without a deposit actually work?

I’m heading to Dubai for a few days on business, and I need to pick up a car right at the airport, but I don’t want to have a deposit held on my card because I’ve almost reached my credit limit. I’m looking at options for Rent a Car in Dubai Without Deposit, but I’m not entirely sure how transparent the payment and insurance terms are. Has anyone actually used this service? Could you tell me if there’s a difference in the process for returning the car compared to a regular rental?