Quick answer
Treat save handling as a safety page: back up before experiments, check Steam Cloud, and use official update notes for compatibility clues.
Safe Save Workflow
- Check Steam Cloud status before moving between devices.
- Back up saves before using external tools, mods, or manual edits.
- Read patch notes and community reports after major updates before assuming a save is broken.
- Keep one untouched save backup if you are testing cheats or file edits.
What This Page Can Safely Say
The reliable sources found so far are Steam Community, Steam announcements, and general PC troubleshooting guidance. I did not find a high-confidence official save-path page, so the page should avoid inventing a Windows or Linux path until it is verified in the local game files or an official discussion.
Troubleshooting Order
Start with Steam's own platform checks: verify files, restart Steam, confirm cloud sync, and read current discussions or announcements. Only then move to manual backups or folder-level investigation.