Slack is a bad example here because you can't really use different accounts at a time (at least on web). It just provides a relatively easy link to switch between them. Maybe app/mobile are better?
But yes, I think OP is asking to be logged into two accounts and see the rooms/contacts/notification from both in the same application. This is not currently supported in Element and I don't think it is on the near roadmap. But some other clients do have multi-account support.
But yes, I think OP is asking to be logged into two accounts and see the rooms/contacts/notification from both in the same application. This is not currently supported in Element and I don't think it is on the near roadmap. But some other clients do have multi-account support.