I have my view history turned off on Youtube. It appears that means I get a lot of low quality ads. Questionable health products, really questionable health products, "5G blocking beanies that prevent brain fuzzing", gross out advertisements about poop, and so on.

It really lowers my perception of Youtube as a product as just any old site with content, but also scams / creepy stuff. Youtube don't care I suspect, it's money for them, and it re-enforces my desire to not give them money... so yeah they take money form who they can.