Do all Microsoft products use the New Commerce Experience, or just some?

Microsoft has steadily expanded NCE across its product lines, but adoption happened in phases — Microsoft 365 and Dynamics 365 moved to NCE first, with other products following over time. Some legacy CSP offers may still exist for certain products depending on when you originally purchased them.

Because Microsoft periodically changes which products are on which commerce model, the most reliable way to know what applies to your specific licenses today is to check directly with your CSP partner, who can see exactly how each of your subscriptions is currently licensed.