There are several entire youtube channels dedicated to dismantling chinesium gadgets and showing how they'll burn your house down. Lack of reverse current protection, lack of overcurrent protection, trace spacing that's way too small and will arc under the right temp/humidity, mains side traces right next to each other, no grounding, ground shorted to neutral, under-rated caps and resistors that reach unsafely high temperatures, etc, etc.
In the EU, products that conform to EU standards can be identified with a 'CE' logo[0], which means "Conformité Européenne". "Chinese Export" can have a deceptively similar logo[1] that does not guarantee such adherence at all, but still looks comforting to European customers of Chinese web shops. It's a blatant violation, but hard to stop, because it's a foreign sale shipped to private customers.
[0] https://en.wikipedia.org/wiki/CE_marking
[1] https://siloscordoba.com/blog/corporate/china-export-is-not-...
Just ask people trying to receive PinePhones in Germany.
You don't have a german manual? Bye bye, try again later.
I'm not denying the environmetal impact, but that's not from Ali Express, it's from us building everything there because it's cheaper.