"Aero Snap" is a feature of windows to auto-resize windows by dragging them to or from the edge of the screen.
See here for a explanatory video:
Installing 6.8.488 yesterday I immediately noticed, that undocking the maximized 1Password-Windows doesn't work anymore. Trying a few more things i can now say:
Undocking the windows works only by clicking and dragging the mouse beyond the red line. The default behaviour of a normal windows app is, that you can click and drag even at the outmost top of the screen which makes sense.
Can you reprocuce this? v 6.7.457 on my other Computer works as intended.
1Password Version: 6.8.488
Extension Version: Not Provided
OS Version: Windows 10
Sync Type: Not Provided