So, a fluid coupling?

only 15 of 56 commonwealth members have king charles as head of state, so it would be kinda werid and against the spirit of things to wave it out of royalist sympathy. You could fly the Royal Standard, but I’m pretty sure that’s technically a hangin’ if you aren’t actually in the presence of the king.

Given how many of them also believe that the royal family is part of multicultural conspiracy to replace the English with bug-eating foreigners, various interregunum flags would mage sense too.

This is what a catgirl gf would actually be like