Has anyone installed GA4 yet? Have you compared Google Analytics 4 and Universal Analytics (UA)? Specifically, attribution?

Google Ads (CPC) attributed revenue and sessions are 95% less in GA4 than in UA. On the flip side, organic attributed sessions and revenue are far higher in GA4.

I’m certified in GA4, and I realize the attribution models in GA4 are different compared to UA, but changing the attribution models never causes a 95% drop.

I installed GA4 using the SuiteCommerce Google Tag Manager Editor bundle.