Conversion Tracking in Google Ads

Hi! How do you train Google Ads accounts for conversions? Many in the gambling industry train offline conversions, specifically by uploading them externally, mostly through Google Sheets. However, I know there are other ways to work with conversions. Does anyone have experience training accounts differently?

Most other methods are not as easy as the usual ones so it probably is not something you would find useful.
Externally, is always good.

Offline conversions work, but some also start with soft events like page views or signups, then switch to real conversions once the account has data.

I had experience working with several GEOs and using offline conversions in the gambling industry and Google AdS. I connected an event in Google Tag Manager and set it as a conversion, without using any user redirects (although I know that using user redirects within a single site can also train an account). This way, the account worked reliably, learning the actions it understood, and it worked well in the long run.