helps me out when i want to practice my chord changes and strimming patterns if i find that i'm struggling to keep up with Lisa's pace in the song practices.
by using the metronome, i can start off slow and graxdually build up pace and accuracy.
i've found it to be a fundemental part of my practice.
i use this :
https://www.imusic-school.com/en/tools/online-metronome/