I honestly can't answer this question as I only use one screen

You seem to have posted your rating incorrectly in the questions. The ratings are here: https://www.digitec.ch/de/product/ratings/owc-thunderbolt-4-hub-60-w-usb-c-dockingstation-14525631#rating

You can connect Other World Computing's "Thunderbolt 4 Hub (Thunderbolt, 1 port)" to your iMac 24" M1, but there are a few considerations to take into account: - The hub has multiple ports, including four Thunderbolt 4 ports and one USB-A 3.0 port, so you can connect multiple devices. - You can connect up to three external hard drives via the Thunderbolt 4 ports or the USB-A 3.0 port, depending on the needs and connection types of your hard drives. - Make sure that the external hard drives are compatible with the ports available on the hub and that you have the appropriate cables. In short, yes, you can plug this hub into your iMac 24" M1 and connect several external hard drives to it.

Have you tried using a different browser? Does the issue still occur?

I confirm that it works, I'm using it with 2 monitors in 1440p, 120Hz refresh rate. Adding a 3nd one does not work still, because of the bandwith exceeding thunderbolt 4 capacity, but 2 works well. Maybe your graphic card could be an issue there? Are you sure your laptop USB-c port is thunderbolt 4 ? Tried with success using a Macbook Pro M2 Max and a Macbook Pro M3 Pro.

Unfortunately no, the power supply unit must also be used.

The power supply unit is included.

Unfortunately, the planned type of use is not entirely clear. If the idea is that both computers can use the display without switching/plugging in (i.e. actually KVM functionality), then no, this is not possible. The hub only has one "computer"/host port, i.e. only one computer can be connected, which outputs a signal to the display and uses other connected devices. If a second computer is connected to the hub in addition to the one on the host port, then the "host" could communicate with the second computer, e.g. as a network via Thunderbolt. Whether this actually works is unfortunately dependent on too many variables. It should work with the Windows computer on the host port and the Mac on one of the slave/device ports. In this case, however, the Mac can only communicate with the Windows computer but cannot use any of the other components (e.g. cannot output anything to the display).

It doesn't matter which USB-C port you use to connect the computer. It doesn't matter if it's a laptop or a desktop.

Briefly skimmed, yup, that should work. In the end you have a USB4 cable from the laptop TB4 connection to the dock and your laptop is also supplied with power via USB-PD. ...And still ports left on the dock. For me, I use a DisplayPort adapter on the dock because my monitor only has DisplayPort (and DVI) input. Works with MacBook Air/Pro. With the HP I can imagine that you still have to fight with drivers. But from the specification (USB4...) it should basically work. (/I'm bothered by two things about this thing: (apparently) no possibility to update the firmware and no possibility to configure it. so the bright status LED on the top cannot be switched off). It does what it is supposed to do. Have fun with the little device.

Yes. One.

The logo can be switched between light/dark/off. See also https://www.owcdigital.com/assets/products/thunderbolt-hub/owc-thunderbolt-hub-user-guide.pdf (page 4 1.5.5)

According to the manual, daisy chain is possible with a maximum of 5 units. https://www.owcdigital.com/assets/products/thunderbolt-hub/owc-thunderbolt-hub-user-guide.pdf If you connect the docking station to a MAC, the usual restrictions apply. Either 1 monitor or 2 monitors with the same image.

Hoi - and Yein ;) https://www.owcdigital.com/products/thunderbolt-hub also lists Windows somewhere - OWC is simply a manufacturer that focuses more on MAC and testing and compatibility than on Windows. Quote " Supported on Apple Mac models with Thunderbolt 3 and macOS 'Big Sur' or newer. Supported on Windows PCs with Thunderbolt 4 ports. Happy Holidays and LG

Here are the specifications of the XDR display and the Mac Pro 2019; that should fit. https://www.apple.com/de/pro-display-xdr/specs/ https://support.apple.com/kb/SP797?locale=de_CH Basically, this should work if you cascade the hubs and use them as repeaters. It's also shown that way on the manufacturer's site. But there are also active optical cables that can transmit Thunderbolt over a longer distance. It would be the much simpler and less error-prone option. The 2019 Mac Pro has TB3 ports: LMP Thunderbolt 3 - Thunderbolt 3 (10 m, Thunderbolt) Manufacturer: [https://lmp-adapter.com/product/lmp-thunderbolt-3-optical-cable/

If you complain to customer service, you will get it for free, unless you want Digitec to fix the error at your expense. - - - - - - - - - - - - - - - - - Digitec (or any other Swiss retailer) is obliged to supply electrical appliances with a Swiss plug. If the appliance is supplied with a foreign plug, a suitable replacement cable should be supplied if the mains cable is pluggable or alternatively, if the mains cable is permanently connected, a suitable adapter should be supplied. If the appliance is delivered without a suitable plug, complain to the customer service and insist on a cable or an adapter, free of charge. Info Digitec --> https://helpcenter.digitec.ch/hc/de/articles/4402084170386-Fehlender-Adapter Point 1 --> https://www.esti.admin.ch/de/themen/faq/elektrische-erzeugnisse-marktueberwachung/

Yes.

Unfortunately, we do not have any information on this at the moment. Should the product become available to us through our suppliers, we can check a possible inclusion.