DWIN_T5UIC1_LCD VS BeltDrivenEnder3

That is not entirely true, there are ways to get it done: https://github.com/GalvanicGlaze/DWIN_T5UIC1_LCD/wiki

https://github.com/GalvanicGlaze/DWIN_T5UIC1_LCD/wiki its how to get the V2's display working with moonraker and octoprint using the PI's GPIO

Yes, bustedlogic version works with moonraker. The run.py goes to /home/pi/DWIN_T5UIC1_LCD and you have to be in that directory tou run it. Putty works. This fork explains it little better https://github.com/GalvanicGlaze/DWIN_T5UIC1_LCD/wiki, but make sure to close bustedlogic git.

I can't take any credit as I only wrote a more simple tutorial on how to install it: https://github.com/GalvanicGlaze/DWIN_T5UIC1_LCD/wiki

Or you can go for "belted Z" that is available on github by kevinakasam. https://github.com/kevinakasam/BeltDrivenEnder3

This is called Z banding which happens on ender 3 style printers with a single Z rod, you can buy a dual Z axis kit but I would recommend Belted Ender 3 mod instead as it will almost remove it completely and is around the same price, more DIY though.

After that, convert your printer to belt driven. The kit's only $25 and easily the best upgrade you could do on that unit. That link has some example prints, all the .stls, and links where you can get the kit

There are also more radical approaches. KevinAkaSam has a mod that foregoes leadscrews altogether, using a system of belts to drive the Z-axis instead. This is still a Cartesian printer, but since there are no leadscrews, there is no leadscrew wobble. It still uses only one motor (like the belted-leadscrew approach above, though it moves that motor to the top of the printer, so you might need a longer cable for it.

Tbh, I think it's more trouble than it's worth. There are several ways to get dual z without dual steppers, and it's less effort that way. My preferred dual z solution is a belted z axis like kevinakasam's mod. https://github.com/kevinakasam/BeltDrivenEnder3

If you are doing this Ender3 mod, then the settings stay the same.

On my V2, once I finished all the pieces for the belted Z mod, I used the old extruder motor to replace the Z axis motor since is is a bit stronger.

You can feel this if you carefully manually turn the lead screw. You will feel more resistance at some points. There are some simple fixes that you can find on reddit for adjusting the bracket. You can also replace that bracket by going to a belt drive. https://github.com/kevinakasam/BeltDrivenEnder3