Traffic comparison b/w GA 3 and GA4

Hello,

I felt there is some glitch in GA3. and Ga4 tracking but not confirmed.
Today I check my Past week's (20 Aug 2022 to 28 Aug 2022) website traffic in GA3 and GA4 and compare I got shocking results from both.

GA3 Past week Data Graph


GA4 Traffic Data



How is it can possible?

maybe GA4 is worse than GA3 and google doesn't tell us? .... or maybe it contains features so advanced (and intrusive into our privacy) that powers like EU simply blocks this code / blocks sites that use this code from tracking people in the EU.... or maybe it has something to do with browsers / ad blockers..... I don't know, I'm just guessing here because nobody really knows yet what the problems with GA4 are, but I honestly don't dismiss any of these possibilities

Yes, even I noticed this mismatch in the traffic data for GA3 and GA4 stats. GA3 always shows higher visits while GA4 shows lower visits for the same data range.

Not sure why this happens, but once next year when GA3 will be gone, will we see downfall in our traffic count? This is serious.

@Dhavaljain Have you noticed any drop in the revenue of your site over this period compared to the period when GA4 was not installed?

sageshark said:

Yes, even I noticed this mismatch in the traffic data for GA3 and GA4 stats. GA3 always shows higher visits while GA4 shows lower visits for the same data range.

Not sure why this happens, but once next year when GA3 will be gone, will we see downfall in our traffic count? This is serious.

@Dhavaljain Have you noticed any drop in the revenue of your site over this period compared to the period when GA4 was not installed?

Click to expand...

Yes, I noticed the same.
also compared data with GSC and there is also an up in traffic.

Dhavaljain said:

Yes, I noticed the same.
also compared data with GSC and there is also an up in traffic.

Click to expand...

ok, but as I asked, did you notice any fluctuations in revenue as compared to the period before implementing GA4?

sageshark said:

ok, but as I asked, did you notice any fluctuations in revenue as compared to the period before implementing GA4?

Click to expand...

Yes, When i implemented that time revenue goes down as all factore like CPM and all, But now is going good.