The behavior you’re experiencing does sound unusual, especially because Chrome's Inspect Element changes should reset after a page reload, and they should not persist across different browsers.

1. Persistent Local Cache or Service Workers

• Try clearing the cache
• Also, check if any Service Workers are registered. Go to chrome://inspect/#service-workers in Chrome and terminate any service workers related to your site.

2. Check for Local Storage or IndexedDB Entries

Check Local Storage and IndexedDB for any entries that might hold style information. Clear any suspicious entries that may be saving your edited styles.

3. Disable Extensions

Disable any Chrome extensions that may interfere with DevTools or site styles.

4. Try in an Incognito

Open the site in an incognito window in Chrome. If the style changes don’t persist here, it indicates that it’s likely cached in your regular browser session.

5. Check for Browser Profile Syncing

Try signing out of Chrome temporarily and see if the changes persist.

6. Verify the CSS Source Files

If you’re using a live-reloading dev server that might apply local changes automatically.