Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Standalone app is actually not possible. Looks like AI is giving out wrong information there.
Do you share your plan with other users? If not, the Family plan is a bit of an overkill.
You can use the Personal plan for single user, but it still comes with all other apps.
Or, if you don't mind using the web version, it is completely free. But you need to upload your files to OneDrive, and need internet work on it. You can access it via https://powerpoint.cloud.microsoft/en-us/?wdOrigin=OFFICECOM-WEB.REDIRECT
Otherwise, you can also consider perpetual license like Office Home 2024, a one time purchase instead of paying monthly or yearly.