I don't understand this comment- gcode never had loops, branching, or variables. And most folks use more capable controllers now based on ESP32 or whatever.
Update: I guess gcode does have loops, branching and variables: https://www.fictiv.com/articles/cnc-machining-macros-subprog...
Actually, in LinuxCNC dialect the gcode does have many features most machines will not understand.
This is why these machines can drill and helical-tap plates with thousands of holes with ease. Also, some folks will cut gear-profiles with a slitting saw, and 4th rotary axis...
https://www.youtube.com/watch?v=HI27vSoxCeo
Trying to pull these things off in a CAD/CAM package is usually a fools errand the old guys prank kids with... oh that sounds easy... lol =3
To be fair those features are pretty irrelevant these days. They really are a relict of times when gcode was handwritten. A skill i learned not even 10 years ago in high school.