I try 2023.2…but what is the last best version with pixelperfect camera and 2d physic shapes?
I just would code a retro pixelart game.
I won’t touch later than 2021. There is just too much bad stuff being posted in here about 2022 and I question the choice to mark it LTS.
I may amend this observation if I stop seeing so many people coming in here with 2022 disasters on their hands. 
Best pixelperfect camera is making your own or using asset store asset. Unity one is good enough for a quick gamejam, or if you simply don’t care about result. Once you start making something serious or try to get perfect result you will likely reach the limitations of pixelperfect camera provided by Unity.
I think the builtin pixelperfect camera component in unity and some own scripting should be good for the most use cases.
you should do pixel art without pixel perfect camera, pixelperfect is a dream of the past
you mean render to a texture and then zoom the textured plane/cube whatever? But thats the way pixelperfect camera goes.afaik