From OpenWRT to Stock

Hello everybody,

After testing clean OpenWRT builds on the Turris, this certainly doesn’t feel like a polished experience on this device.
Is HW specific code for the Turris being upstreamed in original openwrt source as well, or is Turris just keeping a separate branch for their own use?
Is it possible to go back to using stock TurrisOS for now?
Awaiting your answers,

Greetings Jasper