If I understood you correctly, only BTC was stolen with the help of clipboard malware - which means that you had to make a transaction in which the malware replaced the address, and that the seed was not compromised.
Coins are still at that
address, but by checking it I didn't find that it can be connected to some crypto service. What you can do right now is write an email explaining your situation and sending it to as many crypto-exchanges as possible, because a hacker might make a mistake and send stolen funds to one of those exchanges - and they can then freeze coins. What you definitely need to do is sign messages from all the addresses from which the BTC was stolen as proof that you are indeed the real owner.
I won’t lie to you that your chances are great, but you have the choice to come to terms with the loss, or to try to do something.
No, I didn't make any transactions at the time while I was waiting at the airport. I don't make transactions when I am at public places and I didn't need to make any transaction at that time. I found out that my copy-paste function has been compromised yesterday, when I tried to send the funds away from the hardware wallet. I double checked the address I copied and paste and they didn't match! So I stopped, I downloaded kaspersky, paid for it, set it up properly, reboot the pc, the malware gone!
I still don't know how the hack happened. but I am sure it happened at the Stansted airport.
I thought the same, to write emails to as many exchanges as possible and hope that they will freeze the funds. I am also going to meet the airport manager if possible to explain the situation. If their wifi is not safe for public use, then they should take immediate action.