Honestly? You should trust nobody.
Unfortunately that would involve living as a hermit in a cave on a desert island.
I personally, somewhat reluctantly, put a little bit of trust in some of the big tech companies, like Google and Apple. I keep them at arms length as much as possible, but they do publish their privacy policies and by and large, they abide by them. And these policies are enforced by a legal system that, again, I largely trust. So after reading the privacy policy, I make a judgement call.
If however a Chinese company were to offer similar services to Apple or Google, I’d see no point even looking at their privacy policy, as it is not something that I’d feel could be trusted to the slightest extent.
Good article
https://telecoms.com/502085/uk-made-the-correct-call-on-huawei-but-the-devil-is-in-the-detail/
Agreed, worth a read, well balanced.