Tuya is the firmware most of these Chinese devices run, I find the compatibility with tuya Zigbee to be excellent, but I haven’t played with tuya wifi gear (I just flashed it with Tasmota to be local only).
I've had one in my bathroom for ages now but never bothered to flash it or integrate it (the 4-gang version of the one you posted I believe). I have watched one or two Youtube clips that run through the flashing process, but given I have one and have mostly smart bulbs tied to the switches, I haven't bothered. I believe there may be a version that can't be flashed, but don't quote me on that... Worth investigating that, if you are considering flashing the switches.
Just to clarify, I bought the tuya wifi blind controllers which didn’t work natively in Hubitat, most switch related devices do work without mods from what I’ve heard.
