Okay a quick update.
I believe I have fixed the problem though no idea why what I’ve done has fixed it.
I used an application on my Mac to delete any and all files relating to both Docker Desktop and also DevKinsta and then started the entire process of downloading and installing the two applications again.
This time I’ve created a site and it looks like all the files are there and the site also shows up in my browser and allows me to login to the backend so I’m hopeful nothing is missing from the site.
Like I say I’ve no idea why that could work though as I’ve never installed either of those application on this Mac before so don’t know why that would have happened!
Mark