How to Activate Microsoft Defender for Business Licenses on Linux Servers?

I work for an organization and we are using Microsoft. I have access to admin panels.

We have purchased a number of licenses for "Microsoft Defender for Business" with the idea of using them on some of our Linux-based servers.

We have set up a machine to test it out. Microsoft Defender itself works: it's managed by organization policies, it's visible in Microsoft Security panel and you can get it to do scans etc.

We set it up using this document: https://learn.microsoft.com/en-us/defender-endpoint/linux-install-manually

But we could not figure out how to get the license for Defender to activate on those machines. All the purchased licenses remain unused.

Is there a way to officially activate purchased licenses on Linux machines?

Btw. I had issues finding a matching tag