Yes — the Epson QS100 is an ultra-short-throw design, which fires steeply upward and needs a lenticular ceiling-light-rejecting (CLR) screen built for that geometry. On a standard-gain screen the image washes out; our builder flags exactly this pairing as an invariant.
Computed from this product’s normalized, source-tracked fields — an unstated spec reads as “can’t check”, never as a yes or a no.