Which dock for a MacBook Pro with M4 Pro - Cannot use HP USB-C Dock G5

the windows standard for displays is you hook up whatever you want, and if it works good enough for you, then great.

The Apple standard for its built-in hardware-accelerated displays, makes them suitable for full-motion video for production/display of cinema-quality video with NO dropped frames, and NO dropouts or partial-blank scan lines due to memory under-runs or other issues. This requires a hardware rasterizer/display-generator for each fully-accelerated display, supported by Huge memory bandwidth to refresh each display 60 or more times a second. 

Because USB-3 does not have enough bandwidth to support two 4K displays, Apple has decided it will NOT be supporting Multiple displays over USB using Multi Stream Transport (MST).

To support two displays on one cable on a Mac, the port, the cable, and the first device (Dock or Display) must all be genuine ThunderBoot. USB-3 has only half the data pathways, and that is just not good enough.

Grant Bennet-Alder wrote:

if two HDMi ports is your main requirement, and low cost in important, see if you can find this specific Mac-oriented ThunderBolt Dock from a Reseller in your region:

https:/https://eshop.macsales.com/shop/docks/owc-thunderbolt-3-mini-dock

This dock is bus powered and somewhat limited, but it is priced accordingly.

If the displays can take DisplayPort input, there's this:

Other World Computing – OWC Thunderbolt Dual DisplayPort Adapter

if two HDMi ports is your main requirement, and low cost in important, see if you can find this specific Mac-oriented ThunderBolt Dock from a Reseller in your region:

https:/https://eshop.macsales.com/shop/docks/owc-thunderbolt-3-mini-dock

This dock is bus powered and somewhat limited, but it is priced accordingly.

a great find!

Priced (in the US) at about US$40.