@Bojan Zivkovic, Thanks for posting in Q&A.
From your description, I know you are interested in EPM add-on within Intune and want to know if it is possible to purchase it for certain user or should pay for all users.
Based on my research, you can choose between a stand-alone license that adds only EPM, or license EPM as part of the Microsoft Intune Suite. If you already have Microsoft plan 1 license, you can only buy a stand-alone license that adds only EPM and assign it to certain users.
https://learn.microsoft.com/en-us/mem/intune/protect/epm-overview#prerequisites
https://learn.microsoft.com/en-us/mem/intune/fundamentals/intune-add-ons#available-add-ons
https://www.microsoft.com/en-sg/security/business/microsoft-intune-pricing
Hope it will help.
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