In order to unarchive a folder or a tag on the main screen of the app on iOS and iPadOS, please tap on the ‘Workspaces’ button in the top right corner of the app’s main screen (The one with ‘Creativit’ title), select the workspace that you would like to unarchive folders or tags in, and then select the ‘Archive’ option in the list. You will then be able to select both folders and tags that you would like to unarchive.
On macOS, please right-click on the workspace that you would like to unarchive folders or tags in, and then select the ‘Settings’ option from the context menu. The pop-up with the workspace’s settings will appear where you will be able to select both folders and tags that you would like to unarchive.