Jun 21 2021 12:09 PM
Jun 22 2021 11:26 AM
If you want to use hub site as a home site, you can use it without any problem. Check how to Set up a home site in SharePoint Online .
Also, it's your choice which navigation you want to show in SharePoint app bar global navigation. You can either show home site navigation or hub site navigation. Even you can choose to create your own navigation from scratch to show in global navigation. Check all available options for global navigation at: Enable and Customize Global navigation in the SharePoint app bar
You can find more information about SharePoint app bar & global navigation at: Introducing a SharePoint app bar that features global navigation
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