Not sure, but I thought the Anglicans recognized divorce. ilso thought Charles and Camilla were married in church. Since he isn’t Catholic, his divorce would not be a question to concern the Pope.
You are right, this doesn’t concern the Catholic Church.
Anglicans are permitted to worship and receive Holy Communion if they divorce. They cannot be re-married in Church if their previous spouse is still living.
Not sure about Camilla. I believe Andrew Parker-Bowles is Catholic, but Camilla is not.