Found a/the resolution:
Settings > Apps > See all [total app count] apps > All apps (show system) > Pixel Camera Services > Permissions > Camera > [default toggled to Don't Allow > set to Allow only while using the app].
For reference:
GOS Build number 2026042100 / 2026042101
Pixel Camera Services (system app)
version 3.0.792249783.05
com.google.android.apps.camera.services
versionCode 421585
targetSdk 36
minSdk 36