Giving too much detail could be an issue in itself, because it starts to misrepresent what permission you're actually giving it.
If an app says "I'd like local network access to find other copies of myself", and you say yes - you're not giving it permission to find other copies of itself. You're giving it all local network access.
If you give it 'full disk access' because it wanted to access one file, and 'local network access' because it wanted to scan for copies of itself - you've given it full permission to export all of your data to your LGTV.
If an app says "I'd like local network access to find other copies of myself", and you say yes - you're not giving it permission to find other copies of itself. You're giving it all local network access.
If you give it 'full disk access' because it wanted to access one file, and 'local network access' because it wanted to scan for copies of itself - you've given it full permission to export all of your data to your LGTV.