To me it looks like the copper is right on the edge of the hole. I recommend using Schematic symbol Mechanical -> MountingHole_Pad, connect it to ground and then use mounting hole symbol with exposed copper “shielding” for the correct screw size, for instance Mounting_Holes -> MountingHole_5.3mm_M5_Pad_Via for M5 screws. You can see the isolation from +5V on top and the quite large pad to counter for the M5 screw head. On bottom there is thermal relief connections to GND. I also rounded the corner.
Raytracing rendering was not nice to me on bottom side of the board?