Not being snarky, just wanted to point out that @joevt answered this in considerably more detail in several recent posts in this thread.
He also hit on that:
So one could argue they do have a full implementation, but I think at that point we'd be arguing semantics.
I think a pretty nice "dock" might just take up TWO TB ports on the Mac and offer up a large bevy of different ports and also good for some that require a bit of power.
The iVanky FusionDock Max 1 does that very thing, from what I understand. It's 'dual Thunderbolt 4,' takes up 2 of your Mac's TB ports, and offers a bunch of ports. It's got 2 TB 4 chips.
I think this is not a bad means to an end and worth sacrificing 2 Mac ports. The ultimate unit - would be a bit different in it would be a device that requires the two TB ports but half of the ports are modular as in you pick what you want and insert the module in. Pity it would cost way too much but always nice to custom a device to one's liking.
I was part of that discussion so am well aware of the details. My issue was that I was not aware that the LG 5K display used 2 display port channels and joevt pointed this out which answered the problem as to why I could not get the LG 5K and the Apple Studio to work on a single TB 5 port. I responded here because someone later in the conversation had obviously not seen this and I thought it might be helpful to summarize the results of the discussions.
Technically this is correct if, and only if both displays use a single display port channel for their 5K capability. Apple, who promoted the LG 5K in the early days, obviously did not design their TB 5 port to take two 5K displays from LG or anyone that used two display port channels for their single panel display.
The 5K Apple Studio Display has a dual DisplayPort input mode (without DSC, same as the LG UltraFine 5K) and a single DisplayPort input mode that supports DSC.
And your point is? I am aware that there may not be more than a few tens of thousand of us that have 5K LG Ultrafine monitors that we thought had a few more years of use in them. Sorry we jumped on the 5K bandwagon too early. But we all do not immediately trade in our perfectly functional monitors when a new standard emerges. Your observations are correct but not necessarily relevant. Given the number of questions I have had on this specific subject we are not necessarily niche and therefore irrelevant based on the sub text of your post. 9 years or 8 years may be a long time to you, but to me it is a blink in the time continuum.
@PaulD-UK was relating a timeline that is relevant to the discussion. The timeline explains why dual DisplayPort displays exist.
The older technology still works. It just uses more resources than the newer technology. 6K60 takes less bandwidth now (with DSC) than 4K60 does (without DSC).
