We sit almost exactly that distance from our 2021 LG OLED 55” tv.
You will find you quickly adjust, so it may depend on the surrounding furniture and overall size of your room. You can Google several guides on suggested viewing distances*. With HD content it’s plenty sharp enough, and 4K is a step up. SD is pretty poor though imo.
* like this, which suggest 65” is fine...
What is the ideal TV viewing distance and size for your room? Use our simple calculators to determine your perfect TV size and how far away you should sit.
www.the-home-cinema-guide.com