Hi @aacbugle Arron to @BanjoBen 's Forum
Great Question. Yes it’s OK to play forward rolls over a chord progression that’s how most beginners start out. But having a better understanding of what BackUp is and how to execute it is the goal of all great banjo players.
@BanjoBen has grouped a series of lessons that will introduce you to playing backup and help you as you progress to the next level. Here is a link to those lessons. Just work through them at you own pace.
https://banjobenclark.com/courses/basic-banjo-backup?from_track=beginner-banjo