zKsync blockchain is getting some momentum. First it was just a tech added to the Ethereum stack. And now they are offering their own chain for the assets and the nfts  too. Zksync also getting it's own share of the dapps and the blockexplorer now. Slowly they would be getting the games and the apps that would be for the used in near future. Currently USDC has managed to get into the zkSync. I am sure other like USDT, FDUSD would follow soon. 

So far 180 dapps and many Ethereum based solutions would be ported over to the zkSync as it is on the Ethereum layer 2 chain. So it'd not be so far hard to port the apps and the games to be ported over. You would find the low cost transactions on the chain too. Most of the business that are on the USDC network would be able to use the zkSync for the subscription, instant payments and also for the network fee payment too. 

Is it cheaper as of yet? I think network fees on zkSync are kind of mixed. Unlike optimism which is known for the low fee. You would not find the low fees with the zksync as of yet. But that would change if they choose to make the upgrade to the system. But in near future I assume transaction validity and the fees would be something that would developers keep an eye on and reduce the overall cost. 

You can read more about the zkSync on USDC chain here.