The biometrics was introduced earlier this year for all non-immigrant visa categories for select countries, at the same time when Electronic Travel Authorization (eTA) was introduced. This has now been extended to EE also, which would greatly decrease the BGC and other security checks time, making the process a little faster. However, it is still not sure if biometrics is for all applicants or only for some select countries. Usually to give biometrics, an applicant is asked to approach the LVO. In the next 2-3 days, after the IRCC website fully integrates with the changes made to EE will make the things more clear. Until then, stay calm.