You should take some time to educate yourself before calling things "very absurd" and making comments that are poorly informed and barely make sense. This is how anti-monopoly laws work; Google can be fined for what it puts on "its own website" much like Microsoft was fined for bundling Internet Explorer with "its own OS" - your actual product or service must be distinct from your advertising and marketing, because different rules and regulations apply to them.
> The investigation showed that Google integrates or blends its own specialised/vertical search services in its online general web search services in the form of "universal results and commercial units" using mechanisms that do not apply in an equivalent manner to non-Google websites or web content.
And when corporations start blurring that line because they think they can get away with it, these sort of checks and boundaries are necessary to minimise that abuse of power.
> It shows ads to make money to pay for costs.
No it did not, and that's the bloody point: these are not distinguished as ads, but as "enhanced features" that just happen to place Google's offerings unfairly above the others. This is misuse of one part of its business - that's supposed to be a fair and neutral search engine - and going beyond simply tweaking internal algorithms (which they possibly still do) to blatantly favor their own business. (And in case someone is thinking "of course they want to make money", I'll say "and of course they get slapped down by the legal system as they well deserve to, because we want more competition and better services").
> the search intermediation agreements prevented publishers from using search services of competing search engines
This by the way basically refers to agreements about using Google's search services for site-level searches and possibly internal searches - and depending on details, Google was apparently saying "if you use our search services in one part of your business, then by this agreement you are not allowed to use any other search service for another part of your business or service". And there are specific regulations concerning such exclusionary agreements from market-dominant players.
Two articles with a bit more (and a bit better organized) information: https://www.bloombergquint.com/law-and-policy/2018/02/08/goo... and https://news.webindia123.com/news/Articles/Business/20180208...