Microsoft has recently announced it's timeline for the end of Internet Explorer 11 & Microsoft Edge Legacy support across its Microsoft 365 apps and services. Starting November 30th the Microsoft Teams web app will no longer support IE 11, and beginning August 17, 2021, the remaining Microsoft 365 apps and services will no longer support IE 11. Microsoft Edge Legacy will also stop receiving new security updates after March 9, 2021. Microsoft recommends users migrate to the New Microsoft Edge which is based on Chromium and has been progressively rolling out to users.
Timeline
View at TechPowerUp Main Site
Timeline
View at TechPowerUp Main Site