Why Notion's native Word import disappoints
Notion's .docx importer makes choices: it has to map Word's style system onto Notion's block model, and the mapping loses fidelity. Common failures: H3s become H2s (or vice versa), nested lists flatten, two-column layouts collapse to single column, code blocks become quote blocks. Acceptable for a quick one-off; painful for an actual document the team will reference.
Notion's Markdown paste, by contrast, is mature. Paste structured Markdown (with headings, lists, tables, code, emphasis) and Notion produces native blocks of each type — H2 toggle blocks, properly nested lists, table blocks with column alignment, fenced code blocks with syntax highlighting. The conversion fidelity is dramatically higher.
The workflow
Convert your Word document on Word to Markdown, copy the Markdown output, create a new Notion page, paste. Notion auto-detects the Markdown format and renders it as native blocks. Spot-check the result — long documents may need a few touch-ups (e.g. table column widths) but the structural fidelity is what saves you the most time.
For team knowledge bases that mix sources: pair with PDF for Notion, URL for Notion, Audio for Notion, and Video for Notion. Every source modality reaches Notion as clean structured Markdown.