There’s a smaller gap in smartphone makers, where Apple and Samsung dominate globally and in the USA, but once you look at the next manufacturers after the leaders you notice that names like Xiaomi, Oppo, Realme, and Huawei together constitute a sizable global share. And, yes, those are all Chinese brands.
There were a lot more Chinese Android "brands" (most of them probably OEM'd, but I digress) around 10-15 years ago. Ainol, Blackview, Cubot, Doogee, Elephone, Gionee, Goophone, iOcean, Jiayu, KingZone, Leagoo, Meizu, Nckia (yes, seriously), NO.1, Oukitel, TCL, THL, Ulephone, Umidigi, UniHertz, Vivo, Zopo... how many of those still exist today? It's rather interesting that the ones which still do have gone the same user-hostile route as Apple and Samsung. The era of Shanzhai has unfortunately mostly passed.