They are fine for about a year and then they start to malfunction.

usb-c connector fits loose in my Dell Latitude laptop, due to which my monitors keeps flickering lots of times.

Works just as expected. On Windows 11. Two monitors, and can use to extend the desktop or to have duplicate.

If you don't quite need a dock but you want multiple monitors.

Exactly what I needed! This USB-C adapter allows for two video signals at different resolutions, which allows me to run my ultrawide at 3440x1440 and my other monitor at 1920x1080. I found that not all USB-C adapters/docks can do that. But this one can!

I tried to connect two 22" monitor with my HP 250G8 laptop running Windows 10 Pro 64bit and the display never came up

This item declares it is a dual HDMI adapter. I hook this up to my Macbook Pro 2019, and yes, it sends output to my two external HDMI monitors, but the output was the same screen on both. I thought 'dual HDMI' meant it would support these as 2 separate external displays, i do not want the same external signal mirrored on both displays. I have read that this can happen if your laptop does not support multiple output signals for multiple displays, but I thought Macbook Pro 2019 with latest macOS supported this scenario.
If the product description were clear about how this product behaves, i would have selected a different product.
Monoprice shipping and customer support is top-notch, five stars for that.

While the device supports "up to two 4K" displays, your PC might not be able to drive that; my PC can only do one 4K or two 2K displays even through this adapter.