Hi @fscott729 Frank to @BanjoBen 's Forum.
There are many similarities between Scruggs Style and Melodic the main difference as far as I can tell is Scruggs is based around signature licks where as Melodic is based around scale notes. Both employ three finger roll patterns, single string and pinches. Scruggs style has more slides, hammer-ons pull offs and string bends although you will find these embellishments in some Melodic arrangements. Melodic as the name suggests tends to follow the melody where as Scruggs with its Signature Licks and Embellishments simply hints at the melody.
This arrangement of Bill Cheatham is a Melodic arrangement by Alan Mundie you will see it’s in the advanced section.
I take note that you are starting up again which suggests you have some knowledge. I would encourage you to work through Ben’s beginner section before moving on to the intermediate/advance sections. There is so much information in the beginner section that will help you later on and there is no harm in learning Scruggs and Melodic at the same time.