yes, and yes. The higher end Samsungs are still relatively affordable at around $1500 to $3000 depending on size and gets you HDR, better lighting/contrast control and better processing of non-4k content. If you watch HDR (e.g. from Amazon) it is a jump up in experience.
Then if you take the next big leap up to more halo flagship TVs at $5k+ have even blacker blacks and brighter colors.
There are also SmartTV built-in features that may not be useful to you but do make things a lot cleaner than having to switch to another media input to do your smartTV functions.
The sound isn't going to be great on any of these, so that's a bit of a moot point as you should be spending to get a sound bar or other home theater.
That being said, if you're watching the game, all you care about is what happens. Ultimately as long as you are entertaied and able to get the content, you can still be happy.