I know this sounds silly. However am not getting any article / post which explicitly says that ‘SharePoint Online will open MS Office documents (word, excel, ppt) in Browser (Office Online)’.
Moreover looking at the Compare SharePoint Online options getting an impression that ‘SharePoint Online Option 1’ which doesn’t include ‘Office Applications’ will download Office files to client computer.
Kindly confirm “Whether SharePoint Online will open’s Office documents like word excel etc in Office Online i.e. in Browser or not?”
Thank you
Those are two separate things licensing wise:
SharePoint Online document libraries are setup to Open in the browser (or Office Online) by default for supported file formats.
If you have the Office app licenses i.e. Business Premium or Enterprise then it will be up to the admin whether files would Open in the client application by default.