By the time you log off, it is not exactly accurate. Instead, Instagram shows you online after a delay of a few minutes to 10 minutes. It is possible that you may be online while your computer is offline due to bugs or glitches. By the time you log off, it is not exactly accurate.
What does active today mean in Instagram?
Active today on Instagram means that someone has been on Instagram in the last 24 hours. The green status dot next to the person's name indicates that they are active on Instagram, and you can message them and expect an immediatete response.5 Nov 2021