Is the shimmering linked to a problem with the sharpening filter?
I have always had extreme scenery shimmering with AA disabled, which is removed at the cost of constant slight blur by using TAA. This is at native resolution in the Quest 2, 100 render scale.
Now I have extreme shimmering with TAA disabled, and occasional shimmering as described above even with TAA enabled. I also seem unable to get the clarity I used to achieve using external super sampling. I believe the VR Sharpening filter in the UserCfg remains switched on at all times, even if I try to turn it off by setting it to 0. Please can devs investigate?
Note captain lucky has described other/similar issues with the sharpening in much more accurate and detailed language here: