I own a Wacom Tablet One 12 which is supported by libwacom. 

$ lsusb # From kernel 6.5
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 056a:03cf Wacom Co., Ltd Wacom Billboard
Bus 003 Device 003: ID 056a:03ce Wacom Co., Ltd Wacom One pen display 11.6"
Bus 003 Device 002: ID 056a:03cd Wacom Co., Ltd WACOM One 12 HUB

With kernel 6.6 hitting Factory, the tablet works as a display (it has an
integrated display) but it is no longer detected by libwacom-tools and does nto
function as a tablet. dmesg only reports, when plugging it in,

[    3.081943] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003,
bcdDevice= 6.05
[    3.081949] usb usb4: New USB device strings: Mfr=3, Product=2,
SerialNumber=1

and lsusb, unlike the output above, only shows a USB hub. When downgrading to
the latest 6.5 kernel, the tablet is fully functional again. 

My tests were carried under Wayland (Plasma), but I assume the issue will be on
X11 as well, as the issue seems at a lower level.

Hardware information: 
Lenovo Thinkpad X470

The tablet is connected with a single USB cable through the Thunderbolt port. I
will test later with the three-way cable Wacom supplies (with an external power
supply).