Temu sells really cheap (as in cr*p) merchandise that ships directly from Chinese manufacturers. Companies (Walmart) like this take advantage of the poor by offering really low prices for their products BUT leave out the part that the merchandise is usually shoddy & will have to be replaced in a couple of months. It's a vicious cycle. Here is a Time magazine article about Temu from December 2022.

https://time.com/6243738/temu-app-complaints/

Oh, & yes I consider that to be an ad.