If you want to go big screen/wall eventually then you may be better with one of the new consoles.
PC games (the FOV) are aimed at sitting closer to a "smaller" screen so you can actually see the higher RES.
Firstly, its all about the games or game you intend to play, and there are a few games coming in the next 1-3 years that I feel for me, personally, would suit a big screen experience, but still on PC.
Secondly, yes, the new consoles are a possible choice, but only the XBOX Series X interests me, but with a PC you get all the same games, and much more, PC for me is a all in one media solution, feeding into my high end hifi digital dacs feeding them HI RES audio etc etc via USB.
Lastly, about the resolution, I feel you have it all wrong. Having owned a 65 inch, 4k HDR Samsung flagship now for sometime, the whole point of a large screen, with a high resolution, or at least one of the BENEFITS, is the ability to sit closer to it while still maintaining a sharp image, where the pixels do not stand out. That for me is the point of 4/8k on a large screen. 4k on a 24/27 inch monitor for me is a waste of time, hell, I have been happily gaming on a Samsung 120hz gaming monitor which is 27 inch and 1080p for years without any issues, immersive and easy to drive with a GPU, all while sitting at desk distance, that for me is a fully extended arm, shoulder to finger tip, and you cannot quite touch the screen. I do not see the pixels, text is great and so are games.
Yes its partially subjective and down to personal usage, but I stand by what I said about 4k large screens, they allow you to sit 3-4 feet away and still enjoy a high pixel density, sharp image.