Actually, depending on the number of times Glenda used PUP, the info may be correct. The first time I used PUP in three different vehicles, some oil disappeared, roughly 1/2-3/4 quart. Subsequent runs didn’t use any oil in two of the vehicles, and about half a quart in the 3rd.
I’ve got over 100K of UOAs on PUP on a single vehicle, including the longest single run of anybody on the board on PUP at 17.1k. As Overkill noted, GTL does not have lower evaporation than PAO. You can’t go off the original version of PUP 10w30 that had 4.3% evaporation using Noack, because that ship sailed a decade and a half ago.