is it fine to leave my macbook plugged in all the time

Yes, it is fine to leave your MacBook plugged into power. The Apple-provided power adapter is a "smart" device that can detect the charge level and adjust it accordingly to not overcharge the notebook.

I just want to say that , if you are continuing to charge for a long time . It is good for a short period of time like 1 or 2 week . But not beneficial for a year or a month because it increase heating issue on your device.

Understood .

Yes absolutely , you will never get issue regarding to plugging all time . But it increase the hitting issue . If you have continued these method.

I hope it helps you .

[Link Edited by Moderator]