Earlier quoted context omitted.
This level of dependence on certain tools is neither rare nor unprecedented. Your run-of-the-mill business drone will be trained on Word/Excel/Outlook and be hard to impossible to retrain on anything else (either because of actual stupidity or resistance to change). This already starts at school where "Informatik" is often just learning where to click in Microsoft products. Similarly, tradespeople often specialize in…
There’s actually a far better reason they don’t retrain. There aren’t better tools. Or the tools are basically carbon copies (Google Docs and Sheets). Show me a product that provides so much more value for my team than Excel that it would be worth a retrain.
LibreOffice, free open source software. Just as good as Excel and... free.