Hola, la función relleno generativo no aparece disponible en photoshop

Please read this (in particular the section titled "Supply pertinent information for more timely and effective answers”):
https://community.adobe.com/t5/using-the-community/community-how-to-guide-tips-amp-best-practices/td-p/11601738?page=1

Can you provide us more details please, like version of Photoshop as a starting point. Please include and some screenshot to illustrate the issue.