Star Trek Picard: Every Easter Egg & Hidden Reference From 'Stardust City Rag'
5. One Episode, Two Quark References
In the bar on Freecloud, we see drones delivering drinks. Drones of various configurations appeared on Earth during Picard's interview in "Remembrance" and aboard the Borg Artifact in all of the preceding Star Trek: Picard episodes.
Bjayzl's hired goon, Mr. Vup, is Beta Annari, a new alien race that can apparently smell lies, designed by Neville Page. Vup mentions Quark by name and says the businessman from Ferenginar (home planet of the Ferengi) previously had trouble with the Breen.
The Breen were a race mentioned in Star Trek: The Next Generation's "Hero Worship" and Star Trek Generations, but who appeared wearing refrigerator suits in Deep Space Nine's "Indiscretion". They went on to ally themselves with the Dominion and attack Earth in DS9's seventh season.