Hi people. So in case anyone is struggling with the final "weird chords" section with the stretchy part. Although it would be wonderful to use the actual chords, since you don't really use all your fingers I think this following shortcut kinda works great.
1. You can either do the barre with your pinky or use your third finger and pinky together on the first two strings at fret 4 while just holding the 3rd fret 5th string with your second finger. Kinda like a G/B chord.
2. Then you can just slide the third finger over to the 3rd fret 2nd string for the next chord.
3. Then you can remove the second finger and just barre the 2nd fret for the third chord.
4. Finally for the stretchy chord, you can play the 1st fret 5th string and 3rd fret 2nd string together using the first and third fingers respectively first and then add on the second finger to the 2nd fret 3rd string and the stretch later on.
I find these movements convenient and it works too. (I think). I would love to hear from Justin about this though.