I opened an issue yesterday 
It seems HA core on HA OS can be downgraded (post):
ha core update --version 2024.4.3
I just installed a fresh Raspberry Pi OS Lite and Docker, and will test
docker run -d \
--name homeassistant \
--privileged \
--restart=unless-stopped \
-e TZ=MY_TIME_ZONE \
-v /PATH_TO_YOUR_CONFIG:/config \
-v /run/dbus:/run/dbus:ro \
--network=host \
--device /dev/ttyUSB0:/dev/ttyUSB0 \
ghcr.io/home-assistant/home-assistant:2024.4.3