My LG C5 is in a separate VLAN, with no access to the rest of my home network. I've never accepted the terms and conditions, and I don't need anything from it other than to be a display for my 4k player and PC. I guess now I'm going to remove Internet access from it altogether!

The thing I'd like is if the remote didn't have 4 buttons for crappy streaming services I will never use, but instead had 4 buttons to select the HDMI inputs directly; but no, I have to press a button, wait for the stupid laggy UI to load, navigate or point and click at input I want, then do the same to the preview window. A tedious pain in arse for basically the one main thing I use the remote for. It annoys me no end, and it seems to me that the last thing LG care about is the UX; they've put all their efforts into underhand and user-hostile profiling.

I also have a Roku Ultra for streaming, which I very rarely use. I don't expect they treat their users any better and they use ACR too

You can root your LG and install an app that allow remapping any button to do anything, including selecting specific HDMI input.