True or False: User groups in Slack are accessible across all workspaces.

User groups in Slack are a feature designed to facilitate efficient communication within a single workspace. They allow teams to create groups of users for streamlined messaging and collaboration. However, these groups are not shared or accessible across different workspaces. Each workspace operates independently, meaning any user group created in one workspace will not be available in another. This structure ensures that user groups are tailored to the specific needs and dynamics of each individual workspace, promoting relevance and efficient communication without external interference. Therefore, the statement that user groups are accessible across all workspaces is false.