The new Outlook works fine, at least in most cases.But it's not a native application. It is missing features seen in Mail & Calendar and does not look like a Windows app (because it isn't one).

Microsoft has started force-installing the new Outlook email client on Windows 10 systems for users who deploy this month's KB5050081 non-security preview update. News. Featured; Latest; ...

Also: How to upgrade an 'incompatible' Windows 10 PC to Windows 11: Two ways "New Outlook exists as an installed app on the device," Microsoft said in its message. "For instance, it can be found ...

Microsoft says that Windows 10 users can continue using Microsoft 365 Apps like Word or Excel well past the October date when Windows 10 support expires, but there's a catch.