Please see config/statamic/static_caching.php for the 'exclude' options we use.
These are filled like https://statamic.dev/static-caching#excluding-pages states.
Seems to work as expected when running ddev artisan optimize:clear after every change in the .env and static_caching.php file.
.env:
APP_URL="https://statamic-cache-poc.ddev.site"
APP_KEY=base64:Ay3fPS/+6CKYq8erqSmmGXLSCMO5m8qP5vi5/VDGJoo=
APP_ENV=production
APP_DEBUG=false
APP_NAME="Statamic Cache POC"
VITE_PORT=5134
STATAMIC_STATIC_CACHING_STRATEGY=half