hit me like a bolt of lightning?!....most M1 Mac Thunderbolt ports don’t support USB 3.1 Gen 2....

[Filliam H. Muffman]

The M1 Max Studio doesn't have Thundercrap 4 ports on the front because the 10 core version only has one controller. You need to get the M1 Ultra Studio 20 core version to get front and rear Thundercrap 4.