Better dungeons on 1.15.2? No chocolate quest repoured on 1.12.2, but how to download chocolate quest repoured on 1.15.2? Can be?
google the mod's name and curseforge. The result list will include a link to the various curseforge pages for the mod. If there is no 1.15.2 version for that mod, then you cannot install it on 1.15.2.
There are mods that add better dungeons in 1.15. Dungeon Crawl is one of them, and Quark has a module that can be enabled that generates dungeons