He hasn't been told, if you believe Zim.  
https://www.inforum.com/sports/zimmer-has-no-time-for-speculation-about-his-job-as-vikings-head-coach
Zimmer has no time for speculation about his job as Vikings head coach
EAGAN, Minn. -- So much for the Minnesota Vikings’ trend of making the playoffs in odd-numbered years.
Since
 Mike Zimmer took over as head coach in 2014, Minnesota missed the 
postseason in 2014, 2016, 2018 and 2020 and made it in 2015, 2017 and 
2019. But the 2021 season will end with a whimper in a meaningless 
Vikings game against Chicago on Sunday at U.S. Bank Stadium.
The 
Vikings (7-9) were eliminated from playoff contention with their ugly 
37-10 loss at Green Bay on Sunday night, a game in which they were 
without starting quarterback Kirk Cousins, who went on the COVID-19 
reserve list two days before the game. And there is much speculation 
about whether Zimmer will be back in 2022 for a ninth season.
Asked Monday if he has talked to management about his future, Zimmer said, “No, I have not talked to any of them.”He then was asked why he believes he would be the right man for the job moving forward.
“That’s not for me to judge,” Zimmer said.
As
 Vikings coach, Zimmer is 71-56-1 with three playoff berths in his first
 six seasons, including a trip to the 2017 NFC Championship Game. But 
the Vikings are just 14-18 the past two seasons, missing the playoffs 
both years. They have not been above .500 at any point during the 2020 
and 2021 seasons.
“The media is the ones doing all the 
‘uncertainty” and everything else,” Zimmer said about speculation on 
whether he and his staff will return. “We don’t worry about that. We 
just focus on what our job is.”