You will get all that You Tube gives, up to 96kHz. This is better than YouTube output I think. It will sound amazing, if your tv is centered between your speakers.
The reason we use AES (196kHz) or USB (DSD etc) is to send higher resolution files to the DAC if they are available. Qobuz streams vary from CD quality (44.1kHz) all they way up to 196kHz.