Yes as of now 38" gaming monitor with 144 and 175hz nano ips 1ms 450nits 3840x1600 is only LG... Later on people will get their hands on panels that are larger in size and ultra wide like the LG. It will be less cost then LG plus by that time the LG 38" gaming monitor will be couple hundred less if you can wait... Some cant wait lol.
When I originally purchased my Asus PG278Q's on release in 2014 I only expected them to last a year, maybe 2 until something vastly superior replaced them. I was very disappointed to step down to a 27" 1440p monitor from the 30" 1600p monitor I had been using for many years prior, but gsync and high refresh rate made it worthwhile.
This LG monitor, should it ever come out, is the first monitor to exist that is a worthwhile upgrade. I'm sick of waiting endlessly to upgrade, every year I get older and blinder. By the time the magical microled super monitor exists I will be too old and blind to notice or care.