Azure VMs host (platform) metrics (not guest metrics) to the log analytics workspace ?

Go to the VM resource in Azure Portal

Navigate to Monitor → Metrics to confirm platform metrics are available.

Set Diagnostic Settings

In the VM blade, open Monitoring → Diagnostic settings.

Click + Add diagnostic setting.

Select Metrics (platform metrics).

Choose Send to Log Analytics workspace as the destination.

Pick your workspace.

Save.

Verify in Log Analytics

In your workspace, run a query such as:

InsightsMetrics

| where Namespace == "vm.azm.ms"

| summarize avg(Val) by Name, bin(TimeGenerated, 5m)

This confirms host metrics are flowing.