Still no ability to have separate accounts on an ipad... I sort of understand that a phone is a single user OS, but the ipad most certainly should be a multi user OS.
Apple's products are closer to a personal computer than most PCs ever were ...
Have you tried logging in with multiple accounts on a Nintendo Switch? You're sort of just logged into all of them at once; and when you launch a given app/game, it asks you which profile you want to launch it under.
To me, that'd be the perfect multi-user experience for iPad. Any user can unlock it with their own biometrics/credentials; once unlocked, that user can then act as any user that has a profile on the device.