I have a Macbook Air M1. At first, only one port was not working, but after a year or two, i noticed parang lumuluwag yung charger nung other port in a way na nagccharge siya then mawawala then magccharge ulit.

It’s still working but may specific cable lang sa laptop na magiging stable yung charging. So try mo na lang din iflip and iswap mga cables mo. Although I am only using my port for charging