It's hard to say for sure because this write-up is much more marketing than technical, but they probably mean it uses holographic optical elements.

https://en.wikipedia.org/wiki/Holographic_optical_element

These are more or less "true" holographic elements, because they rely on wave optics and interference. But the pattern is fixed at manufacturing time, not varying with the image that's being displayed. And the image being displayed to each eye is still 2D, not 3D.

Basically, an HOE can act like a system of lenses and mirrors for collimating the image from each eye's display and making it appear at a comfortable viewing distance -- but is much smaller and lighter.

The displayed images are not light fields, just regular stereo 3D. However, the waveguides are holographic. So it's technically correct. And the displayed images will look like the hologram projectors seen in popular movies like Star Wars, so it's not misleading either.

No true hologram afaik. They mentioned waveguides. Looks same tech lineage than hololens / magic leap.

I think Microsoft was first using holographic buzz word for these non-holographic displays

https://www.microsoft.com/en-us/hololens

“holographic device”