OnePlus
Enable One-Handed Keyboard Mode auf OnePlus
Reaching the top corners of the Gboard keyboard with one thumb gets uncomfortable on larger OnePlus phones. The keyboard defaults to full width, so single-handed typing forces you to stretch or constantly reposition your grip.
Gboard includes a dedicated one-handed mode that shrinks the keyboard and moves it to either side of the screen. This cuts the distance your thumb has to travel without changing anything else in the interface.
Open Settings ➔ System ➔ Languages & input ➔ Virtual keyboard ➔ Gboard ➔ Preferences ➔ One-handed mode. From there choose Right-handed mode if you type with your right thumb, or Left-handed mode if you use your left hand.
The keyboard shifts and shrinks toward the side you picked right away. A small arrow icon next to the resized keyboard lets you flip sides or return to full width without opening settings again.
If your issue is reaching app icons or the notification shade rather than typing, check the system-wide one-handed mode in your OnePlus display settings instead. Gboard's setting only affects the keyboard layout, not the rest of the screen.