that LG UltraWide 26WQ500-B appears to be a 2560 by 1080 display, similar to a 2K display with the bottom half missing. it supports 10 bits/color HDR=ON
interfaces:
HDMI 2.0
it should support HDMI via a USB adapter or high spec adapter/cable at up to its full rating of 75 Hz.
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HDMI cables you want for HDMI-only Displays (higher resolutions than 720p TV sets) are marked as Certified with an anti-counterfeiting tag and are labeled:
"PREMIUM High Speed HDMI cable" or that + "with Ethernet" (up to 4K at 30Hz) --OR--
“ULTRA High Speed HDMI cable" or that + "48G" (supports higher resolutions and backward-compatible)
Cables with No Certification tags are good for your standard 720p TV set, and not much more.
HDMI was invented for HD TV sets. it works great at its original resolution of 720i or 720p. At higher resolutions, it quickly develops issues that are complex to solve, and the cables and adapters required to solve are NOT intuitive.