My oculus
Specifically, which headset model do you mean? "my oculus" is meaningless.
You're supposed to draw the pattern again on the grid to unlock the headset (the linked video is 2 years old, so the phone app will be a bit different now). Even if the grid shown is a bit different, you should just need to draw the same pattern shape.
My Quest 3 only has an option to set a passcode, not draw a pattern. Is it possible your phone app or headset software is very out of date?
If you still can't figure it out, you might be able to reset the pattern from the Meta Horizon app on your mobile phone. You can see in the video there is a "reset pattern" option.
Otherwise, the only way to get back into the headset would be to do a Factory Reset and then set up your headset from scratch.
- Turn off your Oculus Quest.
- Hold the power and volume (-) button on your headset down simultaneously until the boot screen loads on your headset.
- Use the volume buttons on your headset to highlight Factory Reset and press the power button.
- Use the volume buttons on your headset to highlight Yes and press the power button.