List Unified RBAC role assignments?

I can look in the XDR portal to see the current role assignments, but I would like to have a script to list the current assignments. Perhaps with PowerShell and/or Graph API.
I tried to find anything, but it all seems to refer to Entra ID (custom) role assignments, not Defender XDR (or is that the same?).
Anyway, my current issue is 1. that I have to go trough each and every role assignment one by one and 2. that when I have only read acces, the group names in the assignment are truncated as these are too long to fit in the box