There used to be (still exist) projects like Samygo: https://www.samygo.tv/ https://www.samygo.tv/ and openlgtv: https://openlgtv.github.io/ https://openlgtv

There used to be (still exist) projects like Samygo: https://www.samygo.tv/ https://www.samygo.tv/ and openlgtv: https://openlgtv.github.io/ https://openlgtv.github.io/ but AFAIK due to their complexity and the continuous changes/updates/releases by the TV manufacturers they tend to be outdated or however compatible only with relatively old models.