Ethereum has no relationship with the sync swap. So many protocols got huge tranffic right now. Just because sync swap was announcing its token and it doesn't even mean if sync swap will able to trigger huge traffic. It's for all of people who were using zksycn the fees is quite normal. it's not so cheal or expensive. I think that the token will be launched through loyalty program. think about that. It's not any annoucement will be triggering the gwei to be so high
its 24 gwei now
https://etherscan.io/gastracker