So long as we are anecdotal, that has not been my experience.
Judgments along observance lines, and people thinking those in some denominations are crazy or lesser, but I haven’t seen it drawn on those lines.
Generally the same kind of a thing you’ll find in any religion, or any fandom for that matter— those who are more observant or more dedicated may say the less observant/dedicated aren’t doing it right; the less observant/more casual may say the more observant/dedicated are crazy.