My phone is stuck in One-hand Mode Tutorial

[Yuntian]

Please see the video. I have enable Android 10's gesture control as someone said that was the issue. My phone is US version.
https://youtu.be/b8e5JwS2mwo
I first encountered this issue with Version WW-17.1810.1910.63. I have flashed .68's OTA and it doesn't help. I can't really wipe my phone as my phone has 1 irreplacable authenticator.

[cobben]

This seems to be a way to soft-brick your phone.
If you have gestures enabled, and try to enable one-hand mode for the first time, then you become trapped in the one-hand tutorial, with no way to exit.
Rebooting does not help.

[Anders_ASUS]

I've never seen this before. What happens if you only press the power button? Will you see the restart button?
Have you tried the wipe data/factory reset option?

[wai_hon_leong]

Anders_ASUS

I've never seen this before. What happens if you only press the power button? Will you see the restart button?

Have you tried the wipe data/factory reset option?

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OP said he can't really wipe his phone and straight off, you suggested wiping his phone. ?

[evnchn]

If you happened to have adb turned on you may try fiddling with that, otherwise there isn't much to do other that updating the phone in recovery. It is also not a good idea to grey out the screen in tutorial more and not have the grey out area act as exit, something to bear in mind for other system apps that might have tutorials.