Some enterprise licenses include a multilingual installation. If you have that:
Autodesk still hosts older language packs on their subscription portal. Here’s how: autocad 2017 french language pack 2021
In a word: yes. Autodesk support will refuse to troubleshoot any installation where version resources are mixed. If you need official support, use only the 2017 French pack. Some enterprise licenses include a multilingual installation
: After installation, a separate Windows desktop shortcut is created, allowing you to launch AutoCAD in French while keeping the original English version accessible. User Experience & Reliability Efficient Performance autocad 2017 french language pack 2021