Thread: Envelope versus LFOs
Yes, the easiest way to think of it is that an envelope is a triggered one-shot event while an LFO is a continuously cycling event.
They can be the same shapes (sine, triangle, square, oddly shaped ADSR, bouncing ball, etc.), but the envelope only goes through the cycle once per trigger. LFOs can be synced with a clock, but repeat the shape over and over.
Have fun and good luck!