Tomo Fujija explains Mixolydian mode on Instagram

Tomo Fujita is an active musician on Instagram. I highly recommend to follow him on his account @tomojustfunky because he often posts very cool clips with a high pedagogical value. Here's an example below where he talks about the Mixolydian mode with an example easy to implement.

It's a 2 chord vamp: F/G (F chord with G on bass) and Ab/Bb (Ab chord with a Bb on bass)

To play Mixolydian on the first chord, you play the C major scale. On the second, you play Eb major scale.