Even Microsoft offers some SharePoint 2007 eLearning courses. Even better, they also offer a free end-user training solution that you can download and install in your environment, and also ...

In contrast, SharePoint Server users, using their own infrastructures, aren't affected. The modern UI in SharePoint Online is thought to have a more user-friendly interface than the classic UI.

End users can customize these checklists, if wanted, by selecting the filter icon. The columns that end users will see on modern SharePoint List and Library pages are based on the metadata settings.