Ok, I understand, so for importing the private key, it's much better to use the WIF not compressed as in your example. I think everything's clear.
It actually doesn't hurt if you import both the uncompressed and the compressed WIFs into your wallet. That way you don't miss any UTXOs.
Please, could you explain this? It's the only part of your message I don't understand. I'm learning about UTXOs now ( the concept and how to freeze UTXOs in Electrum ). Maybe, I have no funds, I have no idea, it's been a long time since I created the wallet. But prevention is better than cure and very old addresses suffer dusting attacks.
So, I don't understand how the WIF private key depending if it's compressed or uncompressed can affect the UTXOs.
Thanks.