I'm using google adwords, and I would like to know if it is possible to add the price of the product and "in stock" like it is on this example picture. This is not an ad, just a search result in google for a specific product. I found ad extensions and price extensions in my google ads but it does't look like the example at all, the extensions don't come under the blue title.
What you are seeing there are known as 'extensions' in Google Ads. Specifically, price extensions. Google has a help document here where you can learn more about how extensions work. Their help document here, touches base on price extensions specifically. If you have any questions regarding extensions I would recommend reaching out to their support team directly or going through their various help docs.
Let me know if this helps!