Does my CSP partner provide Azure support, or do I still need a separate Microsoft support plan?

This varies by partner. Many CSP partners include a baseline level of Azure support as part of the relationship, which can reduce or eliminate the need for a separate paid Microsoft support plan for day-to-day issues. For some scenarios (like deep platform-level incidents), your partner may still escalate to Microsoft directly on your behalf rather than you needing your own separate support contract.

It's worth clarifying exactly what support is included with a specific partner, since this varies meaningfully and affects whether a separate Microsoft support plan makes sense for you.