Hi Filippos,
Thanks for reaching out to us. Did you try these options?
Please make sure your theme developer added the WooCommerce zoom and lightbox support inside your theme.
Thank You
Public
Ticket #103810
Hover zoom on desktop and mobile zoom with fingers
Filippos Droutsas
Happy new year!
I need zoom with mouse over on pc version and on mobile version need zoom with fingers or double tap?
Thank you very much!