Setting a workspace as read-only prevents public users from making changes to the workspace. This is helpful if you are sharing your workspace link publicly (e.g. job description, blog post, readme). To
Teams and Sharing
Visited workspaces keeps track of external workspaces that you have visited. External workspaces can include those that you were invited to via email or link or those that you accessed via virtual offices
On the dashboard click on the team switcher dropdown. Select the team that you want to switch to.
On your dashboard, click on Invite members.
All workspaces are shared with team members by default. They do not need to be explicitly shared with team members. You can invite guests who are not team members to collaborate on a specific workspace.