When clutches generally fail, they slip and won’t allow the car to move at all, but you can still shift into gears. With only 22K miles on the clutch, it’s probably ok.
If the clutch reservoir is still full, then it sounds like the clutch master cylinder is most likely bypassing.
Had my clutch master go bad a few years ago, it started out as having issues shifting. If you sat at a stop sign with the clutch pressed and the tranny shifted into gear, within a few seconds you would see the rpms start to drop and the car would creep forward.