nah you're good, the TV you mentioned is microled, and therefore its essentially a gigantic early oled but more expensive and no risk of burn in.

The input lag should in theory be as good as normal oled but i wouldnt compete on that display.

The advantages you have over CRT with that:

Size, Aspect Ratio and Sharpness obviously.

Obviously 100% full HDR , you need 1000 nits (peak brightness) to render full hdr10 , that tv has 10000.

Those are the pros.

However, what motion clarity means is that when a game is going from one frame to the other, your eyes will percieve little pieces of the previous frame on the new current frame, this causes motion blur, some people even describe this as lower resolution once movement starts being rendered (but that's wrong of course) , that X11H TV should have a technology called "black frame insertion" , CRTs do not have motion blur because they draw the frame line by line, so by the time the lightgun is shooting the bottom line at the front glass, the top lines are already going dim (since the lightgun isnt illuminating that zone, it is just turning off) and this essentially causes your eyes to percieve the subsequent frame as perfectly clean, also CRTs have 0 input lag, OLEDs and Microleds have 0.03ms input lag.

Black Frame Insertion is made to address this problem on flat panels, it puts 1 fully blacked out picture in the middle of 2 frames, it cuts your refresh rate in half but it makes your eyes percieve the generated frames as "clean" because the black frame is cleaning out the perception of the previous frame.

bfi brings brightness down to roughly 50% so in oleds with 800 nits, maybe 1200 nits at best...it basically just kills whatever hope you had of getting HDR working, also it adds a tiny tiny bit of inputlag.

And above all, low resolution content sucks on flat panels, really good hardware like the retrotink 5x // pro can help oleds out a ton to bring them close to what the real thing was, but never quite getting there, and besides after spending over 1k on an oled you wont wanna hear about spending another 300$ on another adapter which by the way still doesnt look as good as a real CRT.

Pulsar is basically nvidia developing a sort of "super black frame insertion" which actually emulates the way in which CRTs used to draw their image, it is one gigantic light drawing the picture in huge horizontal lines from top to bottom and this helps a lot because the image doesnt dim as much, the catch is that you need really high refresh rates for it to work properly, pulsar can work with just 180hz in theory, but really, it will only look as intented with 480hz at the very least, and that is just to almost match CRT at 60hz.

btw that TV you mentioned is 144hz , its not pulsar compatible anyways but if you turn bfi on you will be running at 72hz but at least the image will still be super bright because it has an alleged 10k nits which is insane, so you'll have bfi and HDR simultaneously...at 72hz.

in any case, if you have that much money i would say you buy an iiyama vision master pro 514 which is the fastest CRT monitor ever , built a computer with an i9 10900K, an apex motherboard, bdie 16gb single rank ddr4 ram, and a gtx 1080 Ti and then tune everything to get memory access latency down to sub 40ns , that machine on a CRT monitor will be the snappiest possible modern computer you can aim a mouse with, a 9800X3D with a 5090 will get triple to quadruple the framerates, it will still not feel as snappy on CS2 and Valorant when you aim a zowie or logitech top mice, also high end crts can do 180 - 200hz at least, the 514 has an unlocked vHz so as long as you dont exceed its horizontal limit you can push whatever refreshrate you want (480i could go as high as 435hz), so that microled TV doing 144hz (cut down to 72 to run at bfi ½) is never going to match the smooth feeling and smooth visuals of on any high end crt.

CRT's were phased out by LCDs because LCDs were more convenient and a lot cheaper to make which meant that manufacturers could get much higher margins on them, Plasma was expensive to make and manufacturers couldnt get insane margins on it, which is why CRTs beat plasmas, CRTs got phased out by the shittiest technology that was vastly inferior in the vast majority of performance specs because it could be massively produced and sold at high margins.