I know I appear to be in the minority here, but I trust google to categorize and share my "interests" more than I do random websites (plus, I use enough Google products that they have that info anyway), and I prefer targeted ads to totally irrelevant ones (like the garbage ads on twitter). I'll be leaving this on, since it doesn't have any tangible negative impact.
5 years ago I used to get adverts for things like films which I would often watch the whole way through. Today I get adverts for phones and Chromebook. It’s like google are unable to sell adverts that actually target me and instead just throw their own rubbish I have no interest in, and even if I did they are not using the right features (I think they said that a Chromebook can run something by adobe? A company I haven’t run any tools from for about 20 years).
I guess they don’t have much data on me as I don’t do google other than YT and sometimes maps on the desktop, but the adverts aren’t even based on the types of youtube videos I watch, they feel like very generic adverts for products I don’t want.