Copenhagen Easy Clean 8mm Wet Room Shower Glass Return Panel 250mm

Yes, as shown in the picture.

No, this is not suitable to be fitted directly to a wall.

Yes they are made to the highest standard and are designed to take the weight of the panel so you would not have any issues.

This is attached to the wall using the metal attachment on the shower door. There are pins that hold this into place, however, you need a bead of silicone all the way down the gap in the metal attachment. Then there is a cap for the top and the bottom of the return panel this then can be held with tape over night to ensure that it is secure.

Yes, this is fixed

This would need to be attached to a screen.