The Irishman is a movie for all; it will have a limited presentation @ some theaters, and worldwide release on Netflix. Some people watch Netflix on their iPads, others on their 200" front projector displays. So, is The Irishman (and Roma for that matter) made for TV or for the big theater screen? Best is to ask the question directly to Martin Scorsese and Alfonso Cuarón. Me it really don't matter as I can see it wherever I'm please and available.
The size of the screen is related to the distance from it.
The picture and sound quality is related to the theater and the premium 4K HDR/Dolby Atmos Netflix subscription.
@ David, this film is different than "Goodfellas" and "Casino". ...From my readings.
It's more mellow, peaceful, relaxed, ...