Understand Network fee. Big difference between etherscan estimation and the transaction estimation

Hello,

I'm not really new to the blockchain/crypto. Until now, all I do was just buying and holding.

I'm getting more and more interested in the DAPPs world and also NFT.

I tried to purchase an eth domain name and this is the estimation I got for the network fee:

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https://preview.redd.it/i0xxze8l0mv71.png?864&format=png&auto=webp&s=83eb1ac87bb1f269a579a6a3befa561c2f765a51

But according to https://etherscan.io/, this is supposed to be the estimated network fee:

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https://preview.redd.it/qb0g4v5x0mv71.png?691&format=png&auto=webp&s=8b383b3440b67ed945087e2de0a40269e9df29df

I don't understand the difference between the etherscan estimation (~ $7) and the transaction (~ $150). Is it something I missing?