Valve initially had the fans worried with the new gameplay footage from Half-Life: Alyx since the first of the three new gameplay videos featured teleportation locomotion movement. However, these were designed to showcase three different motion modes.
Half-Life: Alyx caught the fans unprepared when Valve announced it out of the blue and said the game would be exclusive to VR which may possibly be the reason why the new gameplay initially caused confusion and maybe disappointment.
Valve's series of three gameplay showcases started off with a video where the player is using teleportation locomotion. They pick a spot on the ground and instantly appear there instead of walking the old fashioned way. You can preview this gameplay on the clip below.
Half-Life: Alyx will not be deprived of smooth locomotion that FPS fans are used to though. It appears that Valve simply introduced more ways of transportation in order to help out with potential motion sickness as not everyone's system gets acclimatised to VR movement that well.
You can check out the gameplay video below, for the "normal" movement that will be controlled with the analog sticks. Oh and don't miss out on the barnacle trying to steal Alyx's loot.
The third, and most action-packed video features the hybrid movement. In this one, the player uses movement indicator similar to the video with teleportation movement but Alyx doesn't instantly reappear on the chosen destination. Instead, she will zoom around at greater speed, giving the players a feeling of movement instead of instantly materialising on another spot.
Therefore, this one should give players less motion sickness while still offering them a semblance of regular movement. Overall, Valve seem to have thought of everything in order to appease both the Half-Life veterans and newcomers to both the franchise and VR.