Is it possible to prevent Microsoft Purview from being applied to M365 within the tenant?

Hello. Thank you for viewing my post.

I am currently considering trying out Purview to enhance data management within Microsoft Fabric.

However, I am facing an issue where I cannot proceed to proof-of-concept testing because the impact on the M365 environment used within the tenant is unknown.

I have reviewed Microsoft's official information and understand the following:

・Using Purview features for M365 requires an E5 license

・Using Purview for Fabric requires a pay-as-you-go Purview subscription

However, I still haven't confirmed what specific impact it might have on M365.

I'm looking for ways to use Purview solely for Fabric, or methods to identify specific operations/settings that could affect M365.

I would greatly appreciate any insights you could share.