Is KCP a trustable bicycles Brand?
To add to the other answer, the obvious signs here are:


Unknown brand sold by Amazon
Tourney, Zoom and unbranded components
Mix of disc and rim brakes
Unified rear triangle rear suspension
Rear shock has huge coil spring and no visible damper


Smaller suspicious things are cable routing over the moving gap, rack and fender mounts, removable cantilever studs that are left in place, trouser protector disc etc