For some players, they would prefer to take all of their IC and OOC posts right inside a Roll20 game rather than using it only for dice rolls. The problem I find issue here though is that this tends to be susceptible to OOC clutter over how the game works, if the rules are valid, what roles rhey should make, etc. One solution I think could work is to essentially create two separate game chats, specifically IC ans OOC chats. This way they're able to discuss without flooding the actual RP at hand, especially if there is a shortcut for switching the two chats on the fly. Commands like /me and /desc can also be locked to the IC post to encourage GMs and players to make use of them.