A cloud-based identity and access management service for securing user authentication and resource access
WHFB certificate trust has hard dependency on premium license as it need device writeback.
All other WHFB doesn't have any license dependency, As long as users can perform MFA to provision the WHFB credentials.
https://learn.microsoft.com/en-us/azure/active-directory/authentication/concept-mfa-licensing#azure-ad-free-tier
If you want to use CA, IDP ..etc you need P1 license to start with.
Hope this helps. Feel free to let me know if you have any questions.
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Thanks
Nagappan V