Netcdf is not saving as the format I specify

I've been using netcdf for a while now, but always within the matlab environment. Now I was creating a netcdf file that later must be read by another python program, and my surprise, is that when reading it with python I have seen that the file is not being saved as I am specifying.

When I create the netcdf file in matlab with the format "NETCDF4" as explained in this web (https://es.mathworks.com/help/matlab/ref/netcdf.create.html) , when reading it with python it recognizes it as HDF5 file. Likewise, if I try to save it with the "CLASSIC_MODEL" format, instead of saving it as NETCDF4-Classic, it saves it as NETCDF3.

I open these files with the program "panoply" and get the same result, matlab is not paying attention to the specifications I am writing.

How can I solve this?