I understand having multiple web properties on a single page is currently discouraged, but are there any plans in the DTM road map to support this? For many clients, having this ability would allow them to utilize separate containers to manage permissions, as well as keep functionality such as analytics and marketing tags separated.
The change to let users implement multiple Web Properties on a single page would require core architectural changes to be made to DTM.
Also, DTM already provides efficient ways to separate out tools and other marketing tags. Hence, I do not see this change being in pipeline for DTM Product team. Please refer to the below documentation for Tools and Tags for your reference: