Yeah they have the CE mark, but it means "Chinese Export". You can recognize it by the C and E being closer together.
https://cemarkingassociation.co.uk/latest-news/ce-marking-an...
https://www.kimuagroup.com/news/differences-between-ce-and-c...
https://starfishmedical.com/resource/conformite-europeenne-m...
HOWEVER, there are a lot of fake CE marks printed by dodgy companies who make the same shitty products that gets imported via Temu. They are already in the business of selling contraband and dangerous factory seconds, no need for conspiracies to give a legitimate twist to their contraband business.