As a Personal ... do when I'm on vacation in the middle of nowhere), I can still open and edit my work. Subscribing to Microsoft 365 Personal means that I can have the apps on my computer for me ...
Microsoft will end support for Microsoft 365 for Windows 10 this October, so you'll need to buy a new Windows 11 PC.
An annual subscription for Microsoft's venerable Office suite of applications, all of which are installed in the user's computer ... 365 Business Essentials. THIS DEFINITION IS FOR PERSONAL USE ...