I've lost count of the mobiles I've had all made in China, I have 4 in the cupboard now that don't work. They're all made in China, most of the phones nowadays are. They are knockoffs, copies or whatever, they advertise Sansung instead of Samsung, and other brands.
Their use is limited especially after 6-12 months as you can't download most apps, you can't open alot of downloaded files including APK's. They are junk, but they work and they do provide email, LINE, google, facebook, and all the popular simple apps. The problem is their Android version is usually 6,7 or 8.0 and becomes obsolete after 6 months for many apps, whereas you need Android ver 11.0 at present.
But, if your worried they will get your info, then don't buy one.