Hi @Bernard Kaminski,
Thanks for following up. I understand how frustrating it can be when hidden spreads still show up in your review export. At this time there isn't a built-in setting in InDesign to exclude hidden spreads from Share for Review. The review feature will always package every spread, whether or not it's hidden in your layout.
As a workaround, you can remove or move the spreads you don't want to share onto a separate layer or into a temporary copy of your document before exporting. Simply delete or hide those spreads in that copy, then run Share for Review on the trimmed document. This will ensure only the spreads you want are included.
I understand that this functionality is important to you, and I apologize for its unavailability at this time. Would you mind creating a UserVoice for this feature request (https://adobe.ly/3G1NQ81)? Adding your comments there will help us prioritize this request, and you'll be notified of any updates.
Let me know if that helps or if you run into any other issues. I'm happy to keep looking into it!
Abhishek