What the sources establish
OfficialRockstar lists Trailer 1 and Trailer 2 on the game page. They provide references for characters, scenes and visual observations.
A promotional scene shows an element at that particular moment. It does not necessarily describe a playable mechanic, its frequency or availability in every situation.
What remains to be verified
UnconfirmedAnalyses should specify the video and the relevant scene. Reading the entries does not require downloading or rehosting trailers.