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.
Adding any emoji as a reaction remains under review.
I am marking this as partially done to let you know a new reactions bar with Like, Heart, Laugh, Surprised, Sad, and Angry has begun rolling out to all users.
We have been iterating on different designs and are starting to test internally. I don’t have a timeframe but will keep you posted.
We have raised the priority of this work item, and it is currently being worked on. We don’t have any dates to share at this point, but will update when we have new status. Thank you!
This feature remains on the backlog. We will update you when we have status changes to share.
We are working on a design with more density in mind. Until this design is solidified we are putting this item back to Under Review.