Apple - How to lock the iPad's screen with a keyboard shortcut?

I was able to figure out Control + Command + Q seems to work on the new iPad Pro keyboard to lock it.

At this moment it is not possible with a keyboard shortcut. Some third party keyboard has dedicated buttons for locking and more...

I highly suggest you give this feedback to Apple!

Right now it may be possible if you have Fn key on your keyboard.

Just click Fn + L and the screen will be locked.

This works on my bluetooth keyboard(Logitech K375s), but I'm not sure whether it works on every keyboard.