I just create a new map with leaflet and GoogleMutan with this three CDN libriaries:
1) maps.googleapis.com/maps/api/js?key=MYKEY" async defer
2) unpkg.com/[email protected]/dist/leaflet-src.js
3) unpkg.com/leaflet.gridlayer.googlemutant@latest/Leaflet.GoogleMutant.js
Why the map shows me numbers above of the tiles? there some conflict from the cdn libraries?
That's because you didn't create a new map using Leaflet + Leaflet.GoogleMutant. That's because you copy-pasted the code from https://ivansanchez.gitlab.io/Leaflet.GridLayer.GoogleMutant/demo.html without bothering to read it first.
Don't copy-paste code blindly. Read it, and understand what it does. In this particular case, search for and identify the map layer which is displaying the tile numbers.
