Hey,
When we record we do a bit of everything. Luke is more multi instrumental than me - I tend to stick to singing and guitar parts , both electric and acoustic, Luke plays piano, bass, guitar, some drums too. In the studio you can layer anything so only needs what we bring though our producer on Friend was great and played some drums for us.
Live we perform acoustic, stripped back versions of the music but for a large show would work with session musicians to match the sound we recorded.