I don't think I've ever seen obviously fraudulent video advertisements in the UK or Germany. Video ads are generally video games, supermarkets or generic products (razors, personal hygiene, etc.)
Then again UK advertisements are a lot more heavily regulated than the USA, by the Advertising Standards Agency - https://www.asa.org.uk - they are actively targeting ads such as "clearly false or outlandish claims for products, for example that a device can save 90% on energy bills, or offering miracle cures".
I'm not sure of the situation in Germany, but I imagine something similar must exist.
However, I still see a lot of text-advertisements with a Mr Beast-style cartoon figure supposedly giving me $1000 for clicking a link, and a lot of distasteful-but-not-neccessarily-fraudulent ads such as dodgy online-dating.