Hi,
The Extended Security Updates (ESU) program has been extended through 2027. It was originally scheduled to end this October, but Microsoft announced an additional year of support. Once the ESU program ends, your device will still continue to work normally. However, it will no longer receive security updates or technical support from Microsoft, which means newly discovered vulnerabilities will no longer be patched. At that point, you'll need to rely on third party security software and follow good security practices to help protect your device.