Not always. After uninstalling, check app embeds, theme snippets, script tags, pixels, and customer events in a duplicate theme before deleting anything.
Duplicate the live theme. Change one thing, use the same page and device, and record what happened. If the change breaks a customer path, roll it back before touching production.
Check the home, collection, product, cart, and checkout path on a phone. Confirm the page still works with a slow connection and that the business owner for the feature agrees it can change.
Not always. After uninstalling, check app embeds, theme snippets, script tags, pixels, and customer events in a duplicate theme before deleting anything.
Source: Shopify theme performance guidance. Reviewed Sep 22, 2026.