Update: This feature appears to have been reverted for all users. It’s not clear why it was only available temporarily — hopefully it returns soon.
Apple Music has updated to better separate content items on artist pages. Previously, Apple Music treated albums the same as singles and EPs; the latter would appear as album listings of single tracks. With a behind-the-scenes update rolling out now, artist pages now feature a separate Singles & EPs section, which declutters the Album section to only feature real albums.