Note: When on Arbitrum, Metamask currently may show paid fees that are higher than actual, right now about 2x-3x.
The gwei gas price is the maximum price you may pay, the actual fee is lower and depends on chain conditions.
Expected fee (at 1.22 paid Arbitrum Gwei - during 125 Gwei on Ethereum while Ethereum at $3500):
Wrap ETH Fee on Sushiswap: 0.00127 ETH ($4.44)
Approval Fee on xDollar: 0.002115 ETH ($7.40)
Open Account Fee on xDollar: 0.001563 ETH ($5.43)