Hey @Marki-sth - you should checkout the discussion over at Image resize in TipTap? where there’s a link off to this TipTap extension for image resizing: GitHub - HoHieuLuc/tiptap-resizable-image: Resizable image extension for Tiptap · GitHub
OOTB we don’t have this, but it’s simple enough to add custom TipTap extensions using the Umbraco Extensions - check out the docs on it Extensions | CMS | Umbraco Documentation