This change in the usual balcony arrangement is understood to be a tribute to Princess Catherine and a reflection of her growing importance in the royal family. Royal observers noted that on June 15, during the Charles Birthday Parade, Princess Catherine broke with tradition by standing next to the King on the balcony. Former royal butler Grant Harrold explained that such arrangements are usually planned in advance, suggesting that King Charles may have personally requested Princess Catherine to be by his side.

Within a month, King Charles and Princess Catherine publicly announced their cancer diagnoses. The King in February and the Princess in March. Following Princess Catherine's announcement, King Charles expressed his pride in her for speaking out about her condition. The King and Queen Camilla have reportedly provided unwavering support to the entire family during this challenging time, with the King maintaining a particularly close relationship with his daughter-in-law.

Princess Catherine's balcony appearance marked her first official engagement of the year. In January, she was reported to be experiencing health issues and had undergone surgery. Despite having both good and bad days during her ongoing ordeal, Princess Catherine has expressed that her recovery is not yet complete.

Royal author Katie Nicholl explored the close relationship between King Charles and Princess Catherine in her book, "Kate: The Future Queen." According to a senior member of the royal family, King Charles welcomed Princess Catherine into the family with warmth and friendliness, expressing his delight at his son's happiness.

When Prince William was appointed Prince of Wales in September 2022, King Charles publicly acknowledged Princess Catherine's role, stating that she, along with Prince William, would continue to inspire and lead conversations across the country while supporting those in need.