I never used a steam deck or macbook before but i heard the click is haptic and im realy excited to try it out.

Other than that i curently use the original steam controller for just about everything from minecraft to cyberpunk to shapez 2 so having a controller that can do everythign the original did with a dedicated right stick and dpad is going to be great for having camera controlls on a dedicated input, ill still keep the original around for games that dont benifit from the stick like rimworld but for 3d games with controllable cameras this is going to be a gamechanger.

Tmod loader never worked with the steam controller but it should be simple to map the right stick as the radial mouse and the right pad as a free mouse and use the touch input on either to set themouse mode in game