Meanwhile the M1 just stays cool and quiet on tasks that had my MBP fans maxing out (prior to getting the M1 I was running the BENQs directly from the MBP). These are really great monitors and I would only go more upmarket if I needed to do professional graphics/film work - and I think these would be fine for that anyway.

Switching between different resolutions is really fast when you need to and the BENQs provide a rock solid fantastic value for money 4K experience. Super Thunderbolt 3 Dock for Mac Studio&Mac Mini M2, Dock Station with NVMe/SATA. The second is running from the DisplayPort(1.3) of the TS3+ also at 60Hz 3840x2106. USB-C Hub with Hard Drive Enclosure for Mac Mini M1, Type C Docking.

One BENQ is connected the the the MacMini's HDMI port and is running at 60HZ at 3840x2106. As many Thunderbolt 4 docks do, the OWC Thunderbolt Go Dock is most likely routing the Thunderbolt 4 controllers single 10 Gb/s USB 3. I was not able to get both monitors to run at high resolutions from just the M1 using various adaptors (in fact that was a while ago so maybe it just didn't work at all) Either way I was buying a TB dock anyway so decided to use it to enable a dual highres 4k setup. Triple 4K Display Docking Station für M1/M2/Mac OS/Windows, WAVLINK 15-In-1 Universelles USB C Laptop Dock Thunderbolt 3/4 Dockingstation mit 3xHDMI, 2xDP,100W PD,7xUSB3. Compared to the previous generation Mac mini with M1, users will be able to transcode ProRes video in Final Cut Pro up to 2.4x faster and simultaneously. But the alternative to 2 x USB 3.0 Type A ports + 1 x USB 2.0 Type A port would most likely be offering only 2 x USB 3.0 Type A ports and no third USB-A port of any speed.

This worked without any problems once I sorted out the connections and installed the late-December version of BigSur (there was some flickering on wakeup on the shipped OS version). The Plugable USB-C Triple 4K Display Docking Station (UD-ULTC4K) is hands down the best docking station for an M1 or M2 Mac. I have been running two PDU2700Us using the Mini M1 and a CalDigit TS3+ thunderbolt dock connected via the USBC/TB port.

Mac mini m1 thunderbolt dock