What is the maximum number of 4k@60 displays this system can drive ? I see, of course, that it has 4x HDMI ports @ 4k@60. However, it also has 1x thunderbolt

What is the maximum number of 4k@60 displays this system can drive ? I see, of course, that it has 4x HDMI ports @ 4k@60. However, it also has 1x thunderbolt port and at least 4x USB 3.2 ports. How many displays can it actually drive if you get fancy with cabling and adaptors ?