People in Europe can easily buy cheap shit from wish.com and whatever that new one is and import them, also you'll get them on ebay from people that just importing in bulk. They will certainly have a nice FCC and CE sticker on them. But, no they're most certainly not certified!

Cheaply made non conforming electronics has been a thing for decades now. But until now it's generally been power supplies that pollute the radio waves with noise (and might go pop one day, but probably not cause a fire). Now we're messing with lithium based batteries without the proper safety circuits you see on property certified stuff. They can cause serious self fueling fires that are hard to put out.

In short, in Europe I would only trust something I bought on a retailer with a national presence and definitely NOT ebay.