Good listing, thanks. Surprisingly many with a Thunderbolt 3 connection, but do they actually all work with an external graphics card?
As far as I understand, the Thunderbolt 3 connection in itself doesn't guarantee that, you also need software (driver and BIOS) support. The software support for external graphics card solutions is still lacking as not all of them work without difficulty with any laptop/tablet or PC.
This is from 2015 in NotebookReview forums:
"Now, intel has thrown a curve ball - Not all laptop with thunderbolt 3 will support eGPU - This is now known as Thunderbolt 3 eGFX extension. In a nutshell, you need to be running Windows 10, the BIOS and thunderbolt firmware must support eGFX hotplugging on thunderbolt 3. You'll also need use active thunderbolt cable for eGFX."
I understand that the situation is much better nowadays, but not without its problems even today.
I have also been thinking about this i.e. a workstation desktop with Xeon and Quadro or FirePro.
Then you could have two monitors (or more), one monitor connected to the workstation desktop's (or laptop) graphics card and another monitor connected to the external graphics card.
Could do some CAD work and then switch to playing or vice versa. Probably difficult to play an FPS game and do some CAD work at the same time though .
Maybe if one has a workstation with two Xeons, then one could play at the same time as the workstation is doing calculations without compromising too much on the performance of either application. In my dreams probably .