Update:
First of all, thank you very much
@Feartech, didn't remember of that at all honestly,
Secondly, just tried connecting my display through HDMI instead of display port (EDIT: looks like it's a display problem, unrelated to the system, other monitors work as expected), everything works fine now, except it's limited to 120hz due to uhd630 not being compliant to HDMI 2.0, if i try to connect two displays, i notice that sometimes there is a super tearing effect, like extreme flickering, sometimes they get recognized as expected and work well, i suppose this is a Integrated Graphics thing which should go away with a proper amd gpu.
ALSO, just discovered that the mouse problem was it's own fault, just switched to a zowie mouse, works like a charm.
And what about Type C rear connector? couldn't figure out how to make it work, doesn't appear on system information either, am I missing something in the bios section?