Personalization feature cannot be disabled for only one business user role.
Reproducing the Issue
1. Go to Adapt.
2. Click on Company Settings.
3. Go to the General facet.
4. Check the box:Disable User Personalization Features.
5. Click Save.
6. The changes are applied globally for all business roles.
This is expected system behaviour.
To disable personalization for one business role is currently not supported.
KBA , LOD-CRM-EMP , Employee , How To