Sitecore Best Practices (V10.1) 004 - Module - Make sure to update the scaffolding for new variant or structure.

 It's general practice and recommendation that we should create the module if the site is going to be a multisite,

Sometimes we created a new variant for the existing component and missed including it under the branch template (scaffolding), so we need to update the structure based on the latest changes. Otherwise, the new site will not have all the latest changes.