just wondering are these in 2.5D or just the 2D for RPG Maker MZ? I am looking at you legacy bundle so same question for that bundle.
These are older assets than the 2.5D packs (Medieval -> 2.5D -> RPGTools; from oldest to newest asset lines). You can use all of them in RPGMaker though. The primary way to use them would be via parallax mapping and not the built-in editor.