Does Woodmart not have any controls or settings for the display of:
1. Title on media thumbs hover
2. Alternative text on thumbs hover or lightbox
3. Caption on lightbox

If not, then I may file a suggestion for this.

On your demo there the image title is displayed on hover:
https://woodmart.xtemos.com/shop/furniture/facilisis-ligula-aliquet/
Could you please let me know how you have done this? Are you using Yoast or RankMath for this?