Guys making 300$ a day is not a big thing for professional blogger but it's shocking for non-blogger people. There are lots of efforts has done by him. That's why he reached to this goal. Guys in recent update of google, it's not accepting the exact match domain.
So if you have exact match domain then you can't place ads of google adsense. Google adsense is the no. 1 ad network so that why people using it widely. Google adsense works for almost all niche.
But in affiliate marketing you can only target selective niche for example if you have a blog of shoes then you can only place the product affiliate of shoes but in adsense you can place ads on any niche you want.
So this is the big benefit of google adsense. If you have premium traffic (traffik from USA) then you can earn handsome money on google adsense like my friend earning that you can see above.
So guys that's it and if you want to earn like my friend then you need to choose best low competition niche and you need to research properly and apply SEO.
Guys share it on social media and don't forget to upvote my post take care.