https://learn.microsoft.com/en-us/training/modules/manage-work-github-projects/
Apparently these are 2 different things! I think I used Projects Classic before, since this feature comparison (copied verbatim) shows a lot of features that weren't present:
| Projects | Projects (Classic) | |
|---|---|---|
| Tables and Boards | Boards, Lists, Timeline Layout | Boards |
| Data | Sort, rank, and group items by custom fields such as text, number, date, iteration and single select | Columns and Cards |
| Insights | Create visuals to help understand your work through historical and current charts with Projects | Progress bar |
| Automation | Use GraphQL API, Actions, and Column presets to manage your Project | Configure Column presets for when issues and pull requests are added, edited, or closed |
Overall not many notes here since I don't anticipate ever using this feature again outside of this training.