What pillar do GSS workers fall under?

I’m wondering where some GSS workers will be placed. The union can’t seem to answer yet. People such as Pharmacy techs, Therapy Techs, MDR, Maintenance. If anyone has any insight it would be lovely to know where people are falling under. Housekeeping, dietary Laundry etc still no idea. The only one I’ve heard is some Administrative going to Shared Services along with the IT. It sure would be nice to have some answers.