Huawei is beholden to the CCP and can be coerced. So playing it safe is probably a better idea than rolling out networks which we have no idea if they contain back doors or not that the CCP could use…
It works the exact same way with every American company, as evidenced by numerous backdoors revealed by Snowden and other folks.
That's far more than enough to stream 4k HRD content on my laptop tethering to the phone.
5g range is limited compared to 4g. 5g is more spotty and needs more direct line of sight. A 5g base station consumes 3x more power than a 4g base station. So 5g is more of a gimick than anything else. The reality is, is there isn't any material benefit over 4g.