Various iCloud storage plans are available, including 50GB, 200GB, 2TB, 6TB and 12TB.
iCloud storage plans and pricing – Apple Support
Another method to copy notes is to simply drag-and-drop from Notes to Files - the exported files being saved with as ".rtfd" (Rich Text Format Directory) files.
If you are not familiar with using drag-and-drop using multi-finger gestures between Apps, this is most easily a achieved on the iPad using side-by-side App windows.
Work with multiple windows at once on iPad - Apple Support
OS - iPadOS 26 - Apple
While the previous Slide Over view is not currently available, Split View remains. You can have two or three App windows side-by-side - or a spit the screen into four quadrants.
To access, assuming that the current App window is not maximised; touch-and-hold the traffic-light icon at top-left of the App window to expose the Fill & Arrange options:

The current App window will move aside, allowing you to open another App; the selected view will open the selected Apps in their own windows - which can be resized laterally, as before, by dragging the divider to left or right.
If the App window is already maximised, swipe downwards from the top-edge of the screen to expose the new menu bar - then use the traffic-light icon as described above.
