Hello Mainecoon364,
Welcome to Apple Support Communities.
We understand that you are not seeing a recently used folder. We are happy to help.
You can see the recent items you have used under Recents. There is no recent folder per se.
You can use the steps here to browse files and folders: View and modify files and folders in Files on iPad - Apple Support
"Browse and open files and folders
- Tap Browse at the bottom of the screen, then tap an item in the Browse sidebar.
- If you don’t see the Browse sidebar, tap Browse again.
- To view recently opened files, tap Recents at the bottom of the screen.
- To open a file, location, or folder, tap it.
- Note: If you haven’t installed the app that created a file, a preview of the file opens in Quick Look.
For information about marking folders as favorites or adding tags, see Organize files and folders in Files on iPad."
You can use the steps here to organize files: Organize files and folders in Files on iPad - Apple Support
"Tag a file or folder
- Touch and hold the file or folder, tap Tags, then tap one or more tags.
- Tap Done.
Tagged items appear below Tags in the Browse sidebar.
To remove a tag, tap it again."
Let us know if you have further questions.
Take care.