Most of our customers are using Google Tag Manager for most of their tracking. Which means that both Universal analytics and Google Analytics 4 has been set up in GTM. That results in them not using the fields for either GTM or UA in website settings.
First and foremost i'd love to see a field for my GTM tag, so we dont have to create our own.
Second is that the purchase event, maybe also other events only fires if the GA4 code is implemented, which then means we have had to create our own datalayer, see image below.