It works surprisingly well. Would like to use it in a personal project to replace ParrelSync that i personally dont want to upgrade to unity 6.
Same question . Would help tremendously if it worked in LTS .
Don’t get your hopes up. 
It’s one of the must-have promo features that gets devs to upgrade / use Unity 6.
Oh and I just did try it on the newer versions . And it thrown me 100 million errors , like with every new package Unity does these days . ( e.g multiplayer tools , yet another package that throws an error on the console every frame ) .