Question about Optoma Uhz65

Apparently no, here are some more details from the manufacturer: https://www.optoma.de/product-de...

No, it definitely can't.
But as soon as you have installed the projector correctly and can watch films in 4K with HDR, you definitely won't miss 3D any more.

This is not a native 4K projector, this is a DLP upscaled DLP projector.
Sony has real ones and the price says it all.