This demo is using a custom layout for a single product page. Navigate to Layouts > Edit “single product layout Mega electronics” with the page builder which you are using. Here you can remove the specification section: https://ibb.co/SnD1sNb .
Navigate to Layouts > Edit “single product layout Mega electronics” with the page builder that you are using.
Here you can edit or remove the specification section: https://ibb.co/SnD1sNb . These are product attributes, which can be edited and configured for each product individually.