For those wondering about their add-ins, Microsoft quote "To provide a more reliable and stable add-in experience, VSTO and COM add-ins aren't supported in the new Outlook on Windows. To ensure your add-in continues to work in the new Outlook on Windows, you must migrate your VSTO or COM add-in to an Outlook web add-in."
Looks like it might be a while until businesses move to this web based version then, as many rely on business extensions in Outlook.
Cheers Steve!
Same here, I've found myself being more productive and having more time. It's also a refreshing experience to be part of an early platform again and seeing it progress.