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.