If the app is good the app is good. End of discussion
Why do you care how it was made? What’s next? It matters what country or city the developer is from or ahah language it’s written in or what machines were used or how the electric was sourced
Who cares!
A README is one of the most important pieces of a project, if one can't even advertise their own project with their own words, it signals low effort.
After all, the people visiting one's repo on GH likely have access to the same AI tools, too.