Im looking to play on 1.18.2, but it appears resourcefull-lib isnt available on this version. Why are these versions listed if they arent compatible?

You don't need Resourceful lib in 1.18.2 Bumblezone. What is making you think that it is required? The curseforge page does not list resourceful lib as a required dependency. It only lists FeatureNBT Deadlock Be Gone as required
https://legacy.curseforge.com/minecraft/mc-mods/the-bumblezone-forge/files/3810570

(Though 1.18.2 and below bumblezone is barebones with like nothing. More content was added in 1.19.2 and even more stuff was added in 1.20.1)

In the dependencies, Resourceful lib is listed as a dependency, thanks for clearing this up

That relation tab is for the latest file uploaded and not individual files where past versions could have different dependencies. This is a bad curseforge display yeah

Also, is there a possibility the newer content will be ported to more versions?

No I will not be backporting features. The workload is too extreme for me and my mod and mc's codebase both changed significantly from version to version. I rely on a lot of newer features and stuff from later minecraft and modloader versions that does not exist in older versions

K