Result of a normal find using
find . ! -path "./build*" -name "*.txt":
./tool/001-sub.txt ./tool/000-main.txt ./zo/001-int.txt ./zo/id/002-and.txt ./as/002-mod.txt
and when sorted with
./as/002-mod.txt ./tool/000-main.txt ./tool/001-sub.txt ./zo/001-int.txt ./zo/id/002-and.txt
however the desired output is:
./tool/000-main.txt ./zo/001-int.txt ./tool/001-sub.txt ./zo/id/002-and.txt ./as/002-mod.txt
which means output is sorted based on filename only, but folder information should be maintained as part of the output.
Edit: Make example more complicated as the subdirectory structure may include more than one level.