You can tell me if there are big ones. Free version, data \ raidablebases \ difficulty_ Location and oxide \ data \ raidablebases \ profiles. How should the names in these two folders be filled in before the booty takes effect

this is explained in the documentation. search for rb.populate

free version uses:
Difficulty_Loot -> Normal.json
Profiles -> Any filename is fine, the default is RaidBases.json
Base_Loot -> Must match profile filename, by default RaidBases.json

difference with premium version is that it will use all Difficulties except for Normal.json