What has happened to the fast opening of Quick Notes on my iPad (by swiping from the bottom right corner of the iPad screen)?

The feature has not been removed in iPadOS 17.x. It may be necessary, however, to reset the feature following update to iPadOS17.

If already configured, you may need to initially disable the corner-swipe gestures from iPad settings:

Settings > General > Gestures > 

• Allow Finger Swipe from Corner - set to OFF 
• Left | Right Corner Swipe - select both to OFF

Restart your iPad:

Force restart iPad - Apple Support

After restart, enable the corner-swipe gestures as required:

Settings > General > Gestures > 

Allow Finger Swipe from Corner - set to ON - unless you wish to restrict gestures to just the Apple Pencil

Left | Right Corner Swipe - select Quick Note or Screenshot as required

ahemAGAIN wrote:

I have an iPad 8 that I just updated to iOS 17.5.1. While i can pull up floating Quick Note through the Control Panel, corner swipes aren’t working. I’ve tried the suggestion above of turning corner gestures off & setting left/right gestures to off, then restarting. After restart corner gestures were default on, left/right off. I turned left/right to screenshot/quicknote, then restarted. Settings showed corner gestures on left/right screenshot/quicknote. Right corner swipe didn’t pull up quick note. It did seem to drag widgets icons up & to the left, then they snapped back.

If your iPad is not operating as expected, begin with a forced-restart - as this will often clear an isolated software issue:

Force restart iPad (models with Face ID or with Touch ID in the top button)

If your iPad doesn’t have the Home button, do the following:

1. Press and quickly release the volume button nearest to the top button.
2. Press and quickly release the volume button farthest from the top button.
3. Press and hold the top button.
4. When the Apple logo appears, release the top button.

Force restart iPad (models with the Home button)

Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.

If the problem persists after performing the restart, it may be necessary to reset your iPad settings. While this reset will not cause any loss of data, as a precaution, it is always wise to ensure that you have a current iCloud or iTunes backup before performing the reset:

How to back up your iPhone, iPad, and iPod touch - Apple Support

When you are happy to proceed, you can perform the reset from iPad settings:

Settings > General > Transfer or Reset iPad > Reset > Reset All Settings

If the problem still doesn’t clear, the next step is to reset the iPad to factory settings:

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

Otherwise, you would be best advised to seek assistance directly from Apple Support. You can contact the Support Team using the Support link at top-right or bottom-left of this page. Alternatively and perhaps easier, you can initiate and manage your support cases using the excellent Apple Support App. If not already installed on your iPad, the App can be downloaded from the App Store:

https://apps.apple.com/app/apple-support/id1130498044

You might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to assist:

Genius Bar Reservation and Apple Support Options - Apple

I have an iPad 8 that I just updated to iOS 17.5.1. While i can pull up floating Quick Note through the Control Panel, corner swipes aren’t working. I’ve tried the suggestion above of turning corner gestures off & setting left/right gestures to off, then restarting. After restart corner gestures were default on, left/right off. I turned left/right to screenshot/quicknote, then restarted. Settings showed corner gestures on left/right screenshot/quicknote. Right corner swipe didn’t pull up quick note. It did seem to drag widgets icons up & to the left, then they snapped back.

have you checked if it's still in settings->control center

for you to add, not with my ipad right now but it there for my iphone with ios17