It looks like the Mortal Kombat 1 launch trailer marketed for Nintendo Switch shows a Steam achievement pop up.
Trailer for disastrous Mortal Kombat 1 Switch release contains a Steam achievement popup
Steam DLC Page: Mortal Kombat 1, mortal kombat 1 1 dlc characters
Swing Into the New Shooter Cyber Combat Coming Soon to Steam! ~ Chalgyr's Game Room
Mortal Kombat 1 Steam achievement pops up in Switch gameplay trailer
Mortal Kombat 1 Gameplay Leaks/Spoilers Megathread : r/Mortalkombatleaks
Mortal Kombat 1 announced for Switch, mortal kombat 1 release date
GINSHA' Offers A Unique 2D Pixelart Action Adventure-Platformer On PC via STEAM & The Nintendo Switch ~ Chalgyr's Game Room
Mortal Kombat 1 Switch trailer featuring Steam achievement taken down
Warner Bros. Games announced Mortal Kombat 1! ~ Chalgyr's Game Room
Woops, the trailer for the rough-looking Mortal Kombat 1 Nintendo Switch port has a Steam achievement notification, mortal kombat 1 steam
Eurogamer: $70 Mortal Kombat 1 Switch version called robbery as graphical comparisons flood the internet, Page 5