A simple yet VERY HANDY tutorial I've made for people who, like me, had to workaround the fact that nanomesh doesn't preserves UVs when you convert them to part of the subtool.

I hope this helps, because it was really bugging me and I couldn't find anyone else with the solution for this issue.

It will also give you much more freedom with your projects.

https://www.youtube.com/watch?v=kCmVhe22wqY