Hello Alexio,
Please Run user summery report for the Users and you will have detailed information about all the roles and users who has it.
You can also use "Users, Team and Security Role Report" Tool in XRM toolbox.
Thank you,
Amit Katariya
Hi,
Please check below link:
https://community.dynamics.com/365/sales/f/dynamics-365-for-sales-forum/382114/user-roles-export#:~:text=Open%20the%20report.,Then%20save%20as%20Excel.
In above link refer below comment:
Stay up to date on forum activity by subscribing.