Ads are the epitome of the enshitification of the internet. It corrupts the incentives to make anything online.
At least they’re personalized now
This is a whole other can of worms that makes it so much worse. From data harvesting to selling your information to third parties etc… It is a privacy nightmare and rather malicious in nature. This is one of the things that FOSS (Free and open-source software) tries to remedy.