Using Classic Outlook on Windows for personal email, calendar, and contact management
LTSC means "long term service channel." It is a perpetual license but it means that the Office suite is intended to be used by organizations and governments. It is a volume licensed product, not a commercial license meant to be used by ordinary consumers. It does not get feature updates, although it gets security updates and bug fixes for five years. I don't believe it includes OneDrive storage.The latest consumer standalone Office version is Office Home 2024 (no Outlook) or Office Home and Business 2024 (new Outlook included). These, too, include no additional OneDrive or mailbox space. If you need additional storage for your mailbox and OneDrive, Microsoft 365 Basic and Office Home and Business 2024 would be a good pairing. You should also be able to get by with Office Home 2024 and the standalone Outlook available from the Microsoft store.Microsoft never had a product called Office 2012. Do you mean Office 2010 or Office 2013? Have you tried reinstalling the Office you have?