@Steven Paredes Thanks for posting in our Q&A.
Based on my research, intune doesn't have such setting that can force the specified password complexity of BitLocker.
If you are interested in this feature, it is suggested to post in intune feedback portal. It is a place to collect customers' requirements and questions. Here is the link:
https://feedbackportal.microsoft.com/feedback/forum/ef1d6d38-fd1b-ec11-b6e7-0022481f8472
Hope it will achieve in the future.
Thanks for your understanding.
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