"The Foreign Office, which has the final say over the destinations for royal visits, is understood to be keen to utilise the diplomatic power of the monarchy to build bridges with major European neighbours post-Brexit. The “soft power” of the Royal family has always been used as a diplomatic tool; the Foreign Office wants to capitalise on its popularity in the wake of the Queen’s funeral, which was watched by billions worldwide."
"Visiting France would have the added benefit of drawing attention to a major tree-planting scheme in Africa designed to combat climate change backed by both the King and the French president. President Macron confirmed that he had issued an invitation to the King to make a State visit to France, saying: “I had the opportunity to invite King Charles to come to France when it is appropriate for him."
Also, I was glad to hear King Charles and Queen Consort Camilla are currently spending time in Balmoral where they can have some private time.
https://www.scottishdailyexpress.co.uk/news/scottish-news/king-charles-iii-travels-scotland-28036537