This is the Merry Piglets argument.
"Angelo said she and her boyfriend, Matthew England, were in town for a wedding in late August. They were out to lunch at Merry Piglets, a Tex-Mex restaurant,
between 1 and 2 p.m. on Aug. 27, when they said an agitated Laundrie began arguing with a waitress. Four and a half hours later, a travel-blogging couple
passed Petito's van at a campsite north of town."
Brian Laundrie argued in Wyoming restaurant hours before Gabby Petito vanished: eyewitnesses
The Bethune video
"The
video, which was shared on social media by Jenn and Kyle Bethune, known on YouTube as "Red White & Bethune," was captured on
August 27 at around 6 p.m. in Grand Teton National Park's Spread Creek Dispersed Camping Area, Jenn Bethune told Insider."
Family travel vloggers share video they believe shows Gabby Petito and Brian Laundrie's van around time of her disappearance
So that's an approximately four-hour difference between the two sightings.