On devices running stock Android, such as a Google Pixel phone, you'll see a large, rectangular button with rounded corners that says, "Auto-rotate," alongside an icon that resembles two L-shaped ...

makes the bottom-left rotate button bigger and therefore easier to tap. The size of the rectangular rotate icon is unchanged, while the circle is nearly the size of an app. This button was first ...

In fact, with the last beta release (Beta 3) of Android Q Google re-added a 3-button navigation mode as well, and anyone using that mode were also able to see the icon and activate rotation lock.