My OG PS4 is about twice as loud as my desktop gaming PC.

NO need to explain it's wattage, as it has no meaning in this discussion. I chose the 1080ti because I use it for multiple purposes, rather than a single one. Flops also have nothing to do with this discussion either, and I'm also aware that Pem/CGI have taught you lot on flops not being the end all on here. I think you need to accept that some of you do not truly understand that which you babble about. It's like uttering "flux capacitor" in order to sound intelligent, but not knowing fully what it means and what it actually does.

YEs, and that is your choice, while others can go for various FF's and place them beside or under their TV's. The only time my desktop will remotely get slightly louder, is if I push my GPU to it's limits (like MInecraft with shaders on maximum, or rendering at a higher load. I can't say I've ever heard of moments from nany of my friends when they've had to lug their consoles to another friend's house, though some of them have put their desktops in the car for spending a few days at LAN parties.

I would consider if every game worked on Linux.

Yes because I game on Nintendo switch, a game console and all Ninty games are not on PC and PC isn't portable

Which GPU have 400 watt TDP?

Even most 1080 Ti and 2080 TI models have 250 watt TDP, a few of them 300 watt TDP:

https://www.tomshardware.com/reviews/nvidia-geforce-gtx-1080-ti,4972-6.html

https://www.tomshardware.com/reviews/nvidia-geforce-rtx-2080-ti-founders-edition,5805-10.html

https://www.tomshardware.com/reviews/gigabyte-aorus-geforce-rtx-2080-ti-xtreme-11g,5953-4.html

And when you use them "only to play in 2D", they will probably run in an idle mode with 10 - 100 watt (depending on the game) and the system will be more efficient than a console playing less demanding 2D games.

While the GPU idles or has only low workloads, many GPU models will also stop the fans and the already more silent PC (compared to most consoles) will get even quieter.

I would still buy consoles generally for big reason, it's due to physical discs/cartridges, even it requires large patch mandatory, it's a lot better than re-buy games via digital storefront over again when i lose my Steam account.

I don't care about if console exclusive games are heading to PC, so.. nothing can stop me.

It has heavy meaning especially i buy Nvidia for GPU and build PC for small electricity bill, i usually used Console more to save energy bill on playing for longer period of time and use it for Youtube as well  etc. ALso LAN party is very old LOL, Iused to play LAN but not anymore and it need a lot of monitor and PC's while with local gaming it's just need one hardware I choose to have simplicity for gaming in front of my living are TV. 

I understand about Teraflop more than you know how it works between each hardware and GPU  , pemalite already told me etc thank you for the advice i am will still use teraflop to compare GPU performance for the sake of simplicity. 

Ot perhaps you want to stick to TDP performance and watt wattage to compare GPU performance ?

What has "heavy meaning"?. My electricity bill is fixed, because I wanted it to be a fixed bill, rather than a stupidly disorganised bill, that could be charged within 3 month intervals and rack up. A fixed bill is more affordable for me, while still being able to use my two consoles and desktop, without any issues. 

LAN parties aren't old, plenty of gamers still do those on a yearly basis, and me and my friends doing it to this day, because well, we want to hang out and game for a few days, nothing wrong with that. There are times when I'd be able to visit my friend's house and hook up to their 4k OLED TV, or bring my own monitor, while he and my other friend go dual monitor. There are also times when I'd just hook my desktop to my TV downstairs in my liviingroom, though I vastly prefer my 144hz 1440p monitor, because 1440p 144hz is my sweet spot over 1080p 60hz.

I too understand how teraflops work, but that doesn't mean I have to keep blabbering about it, especially seeing as how talk of flops suddenly became a thing on console based gaming forums as little as 3 years ago. Simplicity sake won't make it so easy when you still do not grasp that flops do not equate to everything, as Pem has already told you guys.

How about sticking to the actual hz and general GPU VRAM for performance sake, rather than flops and wattage? (like forums have been using for eons)

Yes I'd still play on consoles. PC is too complicated to put together and it's too expensive to buy a pc that can compare to an xbox series x or ps5.

As the poll shows, games also in PC have no impact on the millions of strictly console gamers.

I would go so far to say that MSs approach with Xbox and PC day 1 is better then keeping games locked to one platform. The game is still a system seller because it isn’t on PlayStation. And those who don’t even plan to get an Xbox will buy the PC version.

MS found a way to get money from its customer base on top of taking money from people who don’t even like Xbox. But I doubt Sony will do the same, they seem to have a good thing going with their 1st party games.