Elden Ring save recovery

Help me recover my Elden Ring save on this PC, following findmysave's steps.

1. Read https://findmysave.com/elden-ring/steps.json. If you can't open URLs, use what's below.
2. Rules:
   - Start read-only: find my saves and list name, size and modified time.
   - Back up the whole save folder before changing anything.
   - Ask me before you delete, rename, move or overwrite any file (changes_files=true).
   - No anti-cheat files, no third-party tools unless I say yes.
   - Make sure the game is closed first.
3. Ask which of these happened, then do its steps in order and tell me how to check each one:
   - I can't find my Elden Ring save folder
   - Cannot find the save folder (AppData hidden; unsure if in Documents/OneDrive)
   - Restore from the game's own backup copy
   - Overwrote progress by starting another ending / NG+ and wants the earlier point back
   - Seamless Co-op characters missing after reinstall or when launching vanilla
   - Steam Deck: Seamless Co-op added as a non-Steam shortcut, then removed or changed
   - 'Cloud Sync Conflict' dialog shows different cloud and local save times
   - Save corrupted after a crash during autosave
   - Save copied to another Steam account or PC with a different account will not load
4. Save folder: %APPDATA%\EldenRing\<your Steam ID>\  Files: ER0000.sl2, ER0000.sl2.bak, ER0000.co2
5. If nothing works, stop and tell me. Remote help: https://findmysave.com/help/

Chat-only AIs work too: they walk you through it. Steps as JSON, each with a source: /elden-ring/steps.json