Showing content based of user location(ads, popups)

Hello,
guys, it is my first post here I was a long time reader here.

I have a question about how smart is google bot.

So, if I detect by ip address that user is from tier-1 or tier-2 countries I would show a clean version of page with only one or two ads(google adwords) and if user is from tier-3 countries I would show them more spammy version of page(throw couple popups and replace adwords with others ads).

Also I will check by user-agent if the website is visited by google bot and show clean page version without popups.

What do you think about that? Can google detect that? And can this have a bad effect for seo?

You will soon find out just how smart Googlebot is.
Can Google detect that? In short? They know more about your site than you do.
Looks like you are not doing anything wrong, so they won't care.
Just my opinion. Success.

Yes, you can do that, and its pretty easy with the ads.
The page layout could be probably easier to change based on the UTM parameters

Yes, you can do that! Just get an IP address geolocation API, query the visitor ip and get the output, for example country. Then use a If statement on php, like if is “United States” or “USA” then do this, else do that. Any developer should be able to do this. Keep in mind that’s considered cloacking.