“Real” brands will usually have a proper website where you can learn about their products, whereas those Amazon pseudo-brands generally don’t, or only have a generic template. For example, something like 8bitdo or Fiio are what I’d consider proper Chinese brands.

If you have the option to not buy from Amazon you will also have less junk to sort through.

Xiaomi is IMO already a household name, as is Huawei. Not many I have on the radar though

If you see a generic looking product on Amazon or eBay by a brand whose name seems like it was created by a random name generator, it’s probably cheap Chinese junk. To be certain you can search up the product itself, most of the time sites like Aliexpress sell generic unbranded versions (for less money).

Not the answer to your question, but just something to note with Amazon. They stock many high order generic products, and individual store sellers can list a product as their own, amazon will then part pick from the bin to fulfill the order.
This often means the brand of the store front is irrelevant to the product you receive. It can also mean stock rotates and the next order you have is almost identical but not quite.

It can also occasional mean amazon part picker grabs the wrong part when you order a well known brand, as they either just eyeballed the grab or somebody dumped the wrong stock parts in the bin.