Review on 🔀 HDMI Matrix Switch 4x2: 4K HDMI Matrix Switcher with EDID Extractor and IR Remote Control - Supports 4K HDR, HDMI 2.0b, HDCP 2.2, 4K@60Hz, 3D, 1080P by Jason Gay

Works for the most part. I can only use TV copy for sharing. Sometimes a display only receives sound. If I swap the wires between A and B, they both work. I brought the sound back to just one again. If both displays are on, the display will not turn on with the source. Swap cables and audio from just one display and the other will power up with the source. Sometimes turning it off and on helps. The display on side A goes out and a power cycle is required. It freezes and cannot select an input until power off/on. The device does not have a power button. remote control required. The manual recommends turning it off when not in use to prolong its lifespan. If you don't have a remote, it's dead. I want it to auto-standby.