No it's not delidded, and it was 15C worse than Kryonaut Extreme.
If that isn't complete counterfeit, well, I just do not know what to tell you.
I already have Thermalright Helios (which is also PTM). I know what PTM is supposed to perform like.
This stuff is fake.
I put it on my 13900k and ran Cinebench R23 and got 100C in *seconds* on my AIO.
Imprint pressure was perfect. Kryonaut Extreme was 85C.
It was fine however on my radeon r9 290X (with a broken screwhole too).