You should experience significant improvements in copy & paste of images within Teams, as well as to & from Teams. We are aware of a few remaining issues, but the most common cases are resolved.
Thanks again for your patience on this one.
Thank you for your feedback. We’re happy to announce that an option to choose between Windows 10 Native Notifications and Teams Notifications is included in our Dec 2020 Public Preview pack, and will be available to users who opt into Public Preview.
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