Some outside of the two battling parties can notice an imbalance. I don't see huge Biden flags on pickup trucks or as much "gold calfing" of one man with the Democrats.
You're correct that Biden fans are much less vocal in their support. Trumpers are for Trump. The people I've talked to who checked the box for Biden were motivated more by their hatred of Trump
True, many of us did what we felt as voting for the lesser of two evils. It could be more left vs right than party though; Bernie and Biden folks have a common enemy and Trump seems to have a stronger allegiance from the GOP than expected.
Caption this Meme 