I won't use Temu because they steal designs from legitimate companies and there are concerns about the use of slave labour / factory conditions. Carabelle Studios has been put out of business partly due to their designs being stolen and sold cheaper (but not as good quality) by Chinese companies.
I know a lot of craft products are made in China and I just have to hope that the legitimate companies check on the factory conditions etc. I'd rather pay more for a few decent items than a lot of rip-off ones. I do, however, understand that the price difference makes them much more appealing.