iTunes Match for iPadOS 18.3 not syncing personal library
I bought a new iPad Air and upgraded it to 18.3 before my data synced. My iTunes personal library (not Apple Music) which is mostly ripped from CDs did not sync, just purchased items.
My Music app for iOS (and macOS) has Library > Sync Library turned on. My Music app for iPadOS doesn't have this option which is required to sync personal libraries - see screenshots below. Did Apple accidentally remove the option from iPadOS, perhaps in 18.3?
Note that there is a mistake in the Apple Music support page. It states that a subscription to Apple Music is required for Sync Library which is incorrect: Use Sync Library with your Apple Music subscription - Apple Support. The support page for iTunes Match (I subscribe to Match) states that you must turn on Sync Library for it to work: Subscribe to iTunes Match - Apple Support.
Turning on "Show Apple Music" on iPadOS does not make the Sync Library option appear. Note also the vertical gap above Sync Library on iOS - I believe that is where Show All Purchases used to be. Apparently that option was removed in iOS 15.1 and hasn't been restored: "show all purchases" option missing - Apple Community.
iPad Air, iPadOS 18