Google and TikTok may seem free, but every click and scroll you make gets packaged into a "user profile" and sold to advertisers. Take Facebook, for example—it makes about $50 per user per year just from their data. In the internet age, if you're not paying for the product, you are the product.
They offer services and pleasure that we certainly get but on the other hand they get benefits in terms of traffic and of course the privacy that we have for now is actually very difficult so in this case we cannot deny that there is a price that is appropriate or that must be paid when we really want something.
It is a business that is sometimes not realized for them, especially lay people who sometimes say that everything in the form of free services like this without conditions but in the end we realize that apart from our privacy, we also end up becoming an object because after all for now we as internet users and users of several applications like the ones you mentioned have become an object for their benefit in the business that is done so even though we consider some search engines or social media free but in the end we ourselves are the ones who provide benefits for the business they are developing.