...
Understanding Views: Creating Useful Views for Lists & Libraries | Microsoft Docs
Creating a view: Create, change, or delete a view of a list or library (microsoft.com)
Syncing
The syncing feature allows you to access your SPO files through File Explorer even when you’re offline, providing more flexibility and reducing the time by not needing to open a browser. Note if you delete a file from File Explorer, it will be deleted from both locations.
Syncing your document library: Sync SharePoint and Teams files with your computer (microsoft.com), Please also see https://support.microsoft.com/en-us/office/sync-sharepoint-and-teams-files-with-your-computer-6de9ede8-5b6e-4503-80b2-6190f3354a88#bkmk_change to stop the syncing of your files.
Content-Type: Introduction to content types and content type publishing (microsoft.com)
...