What if I use Incognito? Will the passkey work?
No. Passkeys are not available in Incognito or Private browsing mode. Use a regular browser window instead.
What if my passkey works on one browser but not another?
Passkeys are browser-specific unless synced via Google or iCloud. If you set up a passkey in Chrome, it won't automatically appear in Edge or Safari. Add a new passkey in the other browser from Settings → Account Settings → Add This Device.
Updated