I haven’t seen non - planar movements in any mainstream slicers. There is a limit to how deep you can go, based on extruder configuration. So in snapmaker the angles will be pretty shallow.
I tried a similar project years ago but it was not developed any more.
The slicer was called “slic3r” and was only Linux compatible (if I remember correctly), so poking around in a vm to get it ready…
My main problem was the heat control of the all metal telescope hotend.
Over all, it is nice to can do this but is no mainstream feature to use every time.
Slic3r is the original base slicer that PrusaSlicer, SuperSlicer, Bambu Studios, OrcaSlicer, and Snapmaker Orca are all branches of. Non-planar printing has not been implemented for any of them; haven’t heard why, but I assume it’s just too complex and too specific of a user base to be worth the time/effort to code into them.