After jumping through a lot of links on docs.com, it seems this is the replacement for both ConfigMgr Desktop Analytics and the Office Telemetry Dashboard (which in turn that replaced the Office 2010 compatibility tools Office Migration Planning Manager (OMPM), Office Code Compatibility Inspector (OCCI), and Office Environment Assessment Tool (OEAT).
However, to properly assess M365 Apps for enterprise you have to use a downloadable tool - the Readiness Toolkit. Is there a roadmap to get the Readiness toolkit built into Endpoint Analytics of the M365 Apps Centre (config.office.com)? The main reason I'd use these is for customers that currently use 32-bit of Office by default and need to assess what the impact of moving to 64-bit is