First Thanks to all the answers from this community.
You didn't pay 0.00038385 BTC. You paid 0.0002 BTC as withdrawal fee on Kraken.
After read what you write, i decided to made some differential calculations between my bitcoins on "Kraken" and "Ledger Live"
and if i didn't made any mistakes with it, it looks like you have right...
The 0.00038385 BTC displayed on block explorers like blockstream is the fee paid for your transaction by Kraken to miners. Kraken probably processed multiple withdrawals in a single transaction and got 0.0002 BTC for each of them.
I don't know what did "Kraken"...
So i probably now understand that the fees i see in my
https://www.ledger.com/ledger-live software is not the fee related to my transaction only.
That's what misled me. I feel so stupide now

Sorry.
Really big thanks to all to try to help and explain me...
It helped a lot.