Testing pushed post-checkout extension on dev store -> Not working

Hello

I am able to use the checkout with a chrome extension.
However, when I pushed the extension using the Shopify CLI and created a version, I don’t see the post-purchase upsell page from the published extension on my development store. Does this extension need to be approved first? I followed this guide: https://shopify.dev/apps/checkout/post-purchase/version-publish-post-purchase-extension.md

A similar question was asked here as well:https://community.shopify.com/post/1284985

. Any clue to get this working would be appreciated. Thanks in advance