@alezz81 Can you explain more about your requirements? What do you mean by tabbed SharePoint?
SharePoint supports collapsible sections as accordions on modern pages but not as tabs yet: SharePoint: Collapsible sections on modern pages
Most probably you will need to develop your own custom SPFx web part for tab like structure: Tab Accordion Web Part with Property Field Collection Data and tinyMCE for Rich Text Editing
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