Stories are coming out, said to be from Kensington Palace, that both but Harry, especially, is struggling with the pressure of marriage, being a father and his lifestyle. This is quite sad news, but it will be no surprise to many married couples with young children. Starting a family is bloody hard work no matter who you are.
Maybe Harry and Megan should go have a quiet word with Uncle Edward and Aunt Sophie for tips on how to drift into the background and have a private life while still remaining 'Royal'. If I remember correctly Edward and Sophie had a bit of a hard time in the beginning and almost split up, partly because Sophie was also a commoner and found it hard to adjust to the Royal lifestyle. Harry and Megan are not that dissimilar in that respect
Let them go off and fade from the limelight for a bit. It might not be a bad idea for them to get off the Windsor Estate and go to run one of the Queen's farms where they can bring a family up surrounded by more normal people during their day to day lives. They could still do their charity work and the Royal stuff as required. What they must not do is ignore what might be minor mental health problems now in the hope they will go away.