Luthen Rael (Stellan Skarsgård) arrives in a shuttle that's basically a flying version of a GWR railcar, complete with the 1934 "chocolate and cream" livery.
The expletive 'shit' is uttered for the first time on screen in a Star Wars production. It had recently also been used in several of the official Star Wars novels, starting with E.K. Johnson's 2020 book "Queen's Peril".
Cassian's blaster is a Bryar pistol, which was the main weapon of the character Kyle Katarn in Star Wars: Dark Forces (1995). This episode marks the first time the blaster is featured in a live-action production. The prop was inspired by the K-16 model of the game, but due to the modifications and extra features added by the props designers, it was changed to MW-20.
When the Corporate Tactical Forces exit their Mobile Tac-Pod, the word "caution" is printed above it in Aurebesh.
When Bix is stopped by the Corpos, there is Aurebesh text on the closed up stall behind her reading "Gyo" and faded text on the wall reading "reight".