Seeing conflicting info on the move Mat Block and I have turned to the most reliable source of Pokemon info on the internet, you fucks.

Mat Block was Greninja's 2nd signature move (early favoritism) but mostly vanished after that. Apparently Throh learned it later, but info is inconsistent. Serebii says it was only in 6&7. Bulbapedia agrees with that on the learn level graphic... but also says only Throh could know it in Gen 8? And they have this photo too. Further digging showed some articles talking about Mat Block in Sword & Shield but nothing to conclusively say it is there (or how).

So. Does anyone know if Mat Block is actually in Gen 8 via Throh? Does anyone have a way on-hand to check?