Anyone here good with electronics and can explain how wireless interference works with mac?

[yalag]

I have a mac mini m2. My magic trackpad is a bit lagging/jerky. I did some research and maybe one possible cause is interference (weird because the apple keyboard also uses BT and never has problem but anyways)

But what exactly is interfering? According to this it's

https://www.reddit.com/r/buildapc/comments/jfnbbk

https://support.apple.com/en-ca/HT201542

usb 3.0

but according to this

https://www.reddit.com/r/macmini/comments/lf9mph

its the usb cable.

But according to comment

https://www.reddit.com/r/macmini/comments/lf9mph/_/gmkyh0v

its USB A port

I just don't know WHAT exactly am I avoiding/fixing?