Optimal TV size?

What do you think is the optimal TV size for a wall 4 m wide and 2.30 m high?

The distance from the couch on which you sit while watching TV is about 3.50-4 m

If you can recommend a model to me, it should be reasonably priced

(MEDIUM PRICE), you should be able to hang it up, should have Amazon Prime, Netflix access and internet access

https://www.samsung.com/...950RBTXZG/

I wouldn't take much more than 42 ".

In terms of dimensions, this is very reasonable in size.

I have a LG. I'm very happy with it.

Thank you