All 2 community-submitted Nuke smokes on Fastnades, each with the exact spot to stand on, the crosshair alignment to match and the result, captured as in-game frames rather than a video you have to pause.
A CS2 smoke is volumetric: the cloud fills the volume it lands in, leaks through gaps and doorways, and holds for roughly 18 seconds, so where it settles matters far more than where it was thrown from.
These are the destinations smokes currently land on for Nuke. Each one has its own page with the throws that reach it.
Open an offline server on Nuke with sv_cheats 1, sv_infinite_ammo 1 and sv_grenade_trajectory_prac_pipreview 1, then walk each throw position in turn. Learning three lineups you can hit under pressure beats bookmarking thirty you have never thrown.