Does the map cover parts you traverse upon like usual Castlevania and Metroid games, or does entering a room give you the map for the whole room like Lecarde Chronicles 2 does?
I assume you're aiming for the former, but if you're bringing up Super Metroid..there may be some expectations
The comparison with Metroid was due to the scrolling. Our map will be a bit too big to fit in one screen (like Metroid), so scrolling is now a thing, like Lament did.
The map covers only where you traverse upon, like actual Castlevania games. This is one key point of backtracking mechanics: covering the area that a player should be expected to explore later only causes the exploration to get more confusing. If there is a place within a large room that is too high to reach now, that place should give an indication for the player to return later.
Lecarde Chronicles 2 worked well with its map system by shaping backtracking around the issue. For instance, by having the actual collectables that you can only reach later many times be in an entirely new room instead of being on a room you already explored, it made you return to look for new rooms, not new items, and end up finding new items as a result of that. But Umbra is taking an approach more similar to Castlevanias and keeping how it did maps.