does everyone always print onto the bed at ~60°C?
That depends entirely on the result you get and the Filament you use. Also, keep in mind that whatever you set your bed temperature to and what the printer reports, very likely isn’t what you actually print on. For example, on my Ender 5 Plus, I have a glass bed and had to set my printer to 75°C while on my Voron 2.4, I can simply set it to 66°C and get the surface temperature to around 60°C.
which means that you need to measure the temperature on the surface of the printer and not rely on what the printer is reporting (unless you actually measured the temperature and can guess the actual temperature). The more mass that the print has to heat up, the longer it will take for the print surface to actually reach that temperature.
Personally, I aim for around 60-65°C for the print surface for PLA. I always had good adhesion for my prints at that temperature.










Always consider the “range” of the mesh. Just looking at the shape or the pretty colours will seem like the bed is completely borked even though it isn’t necessarily so in reality.
For example, look at your “range” value; it says that the difference between the highest and lowest point is 0.6004, which is in mm. Meaning: that difference is 0.6mm
That isn’t that much and not really something to worry about. In some cases, where the corners are different to the rest of the mesh, it could be that the wheels on the underside of your bed can be adjusted to make the bed flatter. This would require that your bed actually has those things but I wouldn’t necessarily bother with it since your range is already that low.