What does this do exactly in 1.19.2 I see the isometric previews in the later versions but nothing like that in 1.19.2

That's because preview was introduced in 0.2.0 for 1.19.3

So why would anyone install it on 1.19.2? Not trying to be a jerk, serious question.
Any chance of backporting the preview feature at least?

Great question I can't answer. That version is there because thats what the mod used to be at that release. New updates naturally bring new features.
Also no backports, consider 1.19.4 or 1.20 with Viafabric.

Code-wise 1.19.3 brought significant changes, so much very few mods could just change the version and still work.
Given that, I'm not going to make backports.

1.19.3 was a very minor update. I don't think there was anything major changed in the coding. Couldn't a simple version change allow 1.19.3 to be ported back to 1.19.2? I'm by no means an expert and haven't looked at the code but isn't it a simple file edit?

That's sad but thanks for the reply. I guess this can be closed since it is not really resolvable.