I understand that, in practice, TMs are quite different. The way the mechanics are written is an edited Copy Paste. It works differently, yes, but everything works in almost perfect parallel. The Astral is both greater and lesser in appearance to reality, and the Matrix, due to AR and VR, is quite the same way. CFs work like Spells used to, Fading and Drain are about the same in nearly all respects. Sprites and Spirits are so similar, they can be mistaken - and not just by typo.
In practice, they feel different, but while making a character, I'm stricken by how similar they are. Magic and Technomancy, by their natures, should be mechanically quite radically opposed.