I just found something new. Nephros’ patch to enable the other 2 ‘cameras’ enables a new selection process in the native camera app, Advanced Camera and Open Camera.
You get to choose betweem the ultrawide (0.6x zoomed out) and telephoto (2.0x zoom) lenses. Unfortunately, these are both 8MP rather than 16MP lenses but the telephoto might be useful anyway.
If you select the 0.6 ultrawide option in the native Camera app, the wiggle problem disappears (and you get blurry photos).
In Advanced Camera, the problem disappears with both the ultrawide and telephoto options. This may equate to setting Manual.
[If you press the new lens button in Open Camera about 3x, the app crashes. The patch breaks the menu in Snap Camera.]