It would be great if we could use the Order Submitted trigger with the Order Source > Is > Form filter to work with the standard forms and be able to pass full order data (like product name, variant, etc.) through workflows triggered by standard forms.
Currently, it seems to only work with the one-step or two-step order form in Payments and not the Sites > Forms.
If we were to add a Payments > Sell Products element into a standard form, submitting an order through that form doesn't trigger the Order Submitted trigger on a workflow.
Ideally, we would like to be able to pull in order details through this too and be able to pass that information as custom values to workflows. A great use case for this would be adding order data (e.g. product name, variant, price, etc.) into emails for order confirmations.