They said on twitter this feature is still in alpha stage[1]. Honestly I'm curious about the offer of gas fee waivers for designated individuals (probably not randomly),
It is not impossible if you will pay the fees indirectly, such as merging Visa or MasterCard cards to pay the fees, especially since gas fees for many currencies are very low.
MetaMask development is moving toward centralization, so I would not be surprised if they develop technologies like this.