This. I have a nice 4k 120hz ‘smart TV’ that is not connected to anything. I use it only as a display for PC with external speakers. I’m pretty sure you can even do firmware updates without connecting anything but USB drive. Even if you have to connect to get updates, you can just disconnect it afterwards.

air pistols at dawn

under pressure

trigger point

don’t pull, squeeze

I use the adb method. Gets the job done with minimal fuss. I have a few cmds saved in a text file for copy, delete older than x days, etc.