Yes, that's what I had in mind, I may be wrong though. Did any Brits have issues with eu domains after Brexit?
.eu domains may only be registered to a person or entity that exists within the EU. As soon as Brexit crystallised any British person or entity owning a .eu domain was unable to renew it unless they had an address they legally occupied within an EU country.
I know a few companies who rented a small amount of office space in France so that they could retain their .eu domain.