We only have a few users using Mattermost right now, but yes it’s affecting all users. Mattermost is running through a GitLab omnibus docker install 13.10 (so using Mattermost 5.32). We’re accessing Mattermost through Firefox 78.9.0esr. Desktop Notifications settings are “For all activity” and the channels settings are global. Firefox is running on Centos 7.