That still doesn’t tell you anything about the existence of partitions within the filesystem UNLESS you discover a side channel attack.

The VeraCrypt documentation disagrees with you:

> If you need plausible deniability, you must not use VeraCrypt to encrypt any part of (or create encrypted containers on) a device (or file system) that utilizes a wear-leveling mechanism.

https://veracrypt.io/en/Wear-Leveling.html