@Lindon Oh I got you.
"A Bus is like a virtual wire that's used to send audio signal from one channel strip (the source) to another (the destination). "
(https://www.macprovideo.com/article/logic-pro/how-to-best-use-bus-channels-in-logic-pro)
So this is why it's called BUS channels. Learned something new :D
This was my knowledge before:
ec889b34-cb16-4936-a105-216a26d76533-grafik.png