Two other developers and I were just talking about this on Sunday.
We would love to work on more collaborations together on itch, but the current way projects are handled make that challenging. We're not a studio and we all have our own separate individual projects we are working on, but we occasionally work together a project (usually part of a game jam), and with the current way projects are handled it's super not ideal.
We can't set up a revenue split to give us each a cut. Instead for each project we need to decide who's going to be the primary developer, and then someone has to keep track of that when a purchase does come through to make sure the correct amount gets dispensed out. It's super messy and it means we're less inclined to do full scale collaborations simply because we don't want to rip off our friends, but we also don't want to have to manage payouts to each other.