Since BitLocker uses TPM by default, it means you have a somewhat advanced setup.
VeraCrypt is a great cross platform open source choice built on the old TrueCrypt and comes with better encryption routines so is more secure than BitLocker.
In the context of encryption, how trustworthy the company is really gets interesting unless it is open source and so transparent
Given the information harvesting and privacy trespassing done by a vanilla Windows 10 express install, Microsoft have lost any credibility for encryption and no official statement from Microsoft can change that. Bitlocker must be seen as unsafe, period! What are the chances of the password being sent to Microsoft? They do harvest your other passwords unless you do something about it and so why wouldn't they?
In your case, unless policy denies, I would use VeraCrypt on top of BitLocker and create a few encrypted containers or hidden volumes... That way BitLocker is the simple disk encryptor with VeraCrypt providing additional security. In such usage scenario, BitLocker and VeraCrypt are compatible and should not cause compatibility issues.
BTW: I heard the audit should be done this fall, but have no further information on the subject and so yes, I am eagerly awaiting the results too :flower: