Guidance on moving Sentinel for Brownfield customers

It would be good to understand / update our guidance on migrating / moving Sentinel to the ESLZ mgmt group structure for our Brownfield Sentinel customers as its currently unsupported to move Log Analytics Workspaces to another resource group or subscription as documented here https://docs.microsoft.com/en-us/azure/azure-monitor/logs/move-workspace#workspace-move-considerations.

Options could be to recommend moving the sub and removing anything unrelated to management to other subscriptions where it is supported to do so therefore aligning to the design principles appreciating naming conventions may not be aligned.