Google Tag (gtag.js)

When integrating event tracking via Google Tag, your implementation choice depends on how GA4 is set up on your website.
The basic option is ideal if your website employs a client-side tag solution, catering to those in search of a straightforward setup.
Basic Google Tag (gtag.js)
On the other hand, the advanced option caters to websites featuring a server-side tag solution or a more intricate client-side configuration.
Advanced Google Tag (gtag.js)