Our data layers work perfectly on the Online Store 2.0 themes, too. However, some Shopify stores are quite unique in terms of theme coding, apps, structure, and our data layer codes might not deliver the best job out of the box.
If there is a problem with any specific event (eg: AddToCart), our support team jumps in and performs customizations either on our data layers or your theme files for your specific case, and resolves it all. Rarely, it is not possible to make it fully functional for technical reasons - especially if you are using many external apps. In those cases, we can get your developers' help. Please note that we do all the changes on the duplicated themes and share the detailed changelog with you.