[3][4][5][6] He was made a Knight of the National Order of Quebec in 2019 and enrolled at Harvard University to get a Master of Public Health degree the following year.

[7] Duvernay-Tardif opted out of the 2020 NFL season due to concerns over the COVID-19 pandemic and returned to Canada to work in a care facility.

As a result of his efforts on and off the field in 2020, he was named a co-winner of the Lou Marsh Award, given annually to Canada's top athlete, as well as the Sports Illustrated Sportsperson of the Year.

"[13][a] Duvernay-Tardif played in the 2014 East-West Shrine Game, in which he was part of Jerry Glanville's East team that defeated the West 23–13.

[25][26] Throughout training camp, Duvernay-Tardif competed to be a starting guard against Zach Fulton, Jeffrey Linkenbach, Rishaw Johnson, Mike McGlynn, and Rokevious Watkins.

[27] Head coach Andy Reid named Duvernay-Tardif the fifth offensive guard on the depth chart to start the regular season, behind Jeff Allen, Fulton, Linkenbach, and McGlynn.

[28] On September 13, 2015, Duvernay-Tardif made his first career start for the Chiefs in the season opener against the Houston Texans.

[33] He was activated off injured reserve on January 15, 2019, prior to the Chiefs AFC Championship matchup against the New England Patriots.

[37] He had been working as an orderly at a long-term care facility in Saint-Jean-sur-Richelieu, Quebec, about 40 minutes away from Montreal, during the pandemic.

His role in fighting COVID off the field in 2020 resulted in Sports Illustrated naming him one of their Sportspeople of the Year.

[40] For his efforts both on and off the field in 2020, he was named a co-winner of the Lou Marsh Trophy, which is awarded annually to Canada's top athlete for the year.

[41][42] On July 10, 2021, he was named the recipient of the Muhammad Ali Sports Humanitarian Award at the 2021 ESPYs for his decision to opt out of the 2020 NFL season to help fight the global COVID-19 pandemic.

[43][44] Duvernay-Tardif was traded to the New York Jets on November 2, 2021, in exchange for tight end Daniel Brown.

[53] During the 2018 offseason, Duvernay-Tardif worked as a feature reporter for the Canadian Broadcasting Corporation (CBC) during its coverage of the 2018 Winter Olympics.

[56] He was profiled in a TSN documentary, "Front Line", which was later nominated for the best sports feature segment at the 9th Canadian Screen Awards.