Is this a good speed test?

I tried again at testmy.net and this was the result:

Is your ISP a cable (such as Comcast) or fiber (ONT) company?

my experience,
1. same specs, fiber ISP runs higher speed. your specs 400. fiber can go 420, while cable may be 380.
2. fiber ISP. down/up load speeds are similar/even. no big difference. but cable ISP can download 380, upload 20-50. i.e. significant difference. (right like your last post)

ISP is cable.