Dumb question but do you have any FF extensions that might be causing issues and can you disable them for the site?

Even though it failed a lot of the features it introduced like collaborative work were carried over to their GSuite/Workspace apps later.

Performance upgrades would be great but am I the only one that routinely has issues with lag in received messages? Teams app works fine on mobile, but I routinely have issues with the desktop app where it doesn’t show notifications for new messages for minutes at a time then I get a huge batch update all at once. Extremely annoying if you’re relying on it for anything time sensitive.