We are getting closer, and are still working thru some bugs, but hope to release this as part of a Public Preview pack in early 2021! (Windows 10 released with the December 2020 pack this week)
You can learn more about the new Microsoft Teams Public Preview program here: https://aka.ms/TeamsPublicPreview, and Teams administrators can find documentation to manage which users will see the Public Preview option here: https://aka.ms/TeamsPublicPreviewAdmin
Once support for Windows 10 native notifications is released, users who choose to use Windows notifications will be able to utilize Windows OS specific settings for the length of time to display notifications. Mac does not have an OS specific setting, so will not have the support.
This feature remains under review.
An error occurred while saving the commentRocco commented
Current notification options are virtually useless: Drink from a firehose of all channel activity, or go thirsty receiving none at all.