This is just about GPL compliance though (afaik LG TVs are already GPL compliant, or at least, I haven't noticed any noncompliance).
The bigger problem here is tivoization. You can build a fresh kernel from source but you have no way to install it because the bootloader is locked down.
The lawsuit is indeed about the GPL, but the right to repair (or at least replace) software really it needs to be expanded to all software. The right to repair movement is often about software-based lockdowns. Hopefully it will eventually result in those being banned.
As Conservancy would say, a device with no way to modify isn't GPLv2 compliant either.
https://sfconservancy.org/blog/2021/mar/25/install-gplv2/ https://sfconservancy.org/blog/2021/jul/23/tivoization-and-t... https://events19.linuxfoundation.org/wp-content/uploads/2017...