You can use the LG interface for the short term. It has casting, airplay compatibility and all the apps you already watch. If you want the streamer box, the Apple TV or Roku is a good place to go… If you’re all in on apple, the appletv will give you the best experience.
I put in the AppleTV yesterday and replaced a roku ultra. I can just say, none of it is NEEDED but it is a FAR superior experience. Especially if you use iOS devices as a remote sometimes. Siri, music, airplay, recommendations etc… just better.
Just open your phone and hold it close to the appleTV and it will set it up and log you in. So far we love it. My kids spent all evening using Apple Music with Sing and yelling in my living room… was a good night.
You can set up profiles for each member of your family. Logins to the apps is simplified on most as you just open the app on appleTV and then open the app on the phone and it says Login? and you tap yes and you’re in… you can just tell they thought out the ecosystem for apple users.
I would only say it takes a bit of getting used to
You also get to check which information you’re sharing… and then okay it… it’s a weird article from someone who doesn’t get it.