In GA4 i see begin_checkout show a lot more counts then events like view_cart or add_to_cart, which doesn’t seem like its possible, as the begin_checkout according to the Shopify's Built-In GA4 Integration Review, it fires on the checkout page.
How do I troubleshoot this?
The view_cart event doesn’t fire very often, so that’s fine.
Can you verify that the add to cart event fires as expected?