Hello! As it is currently implemented, equation labels are displayed as part of the equation number in LyX's editor. Sadly, for longer, semantically meaningful label names (e.g. "eq:maxwell-equations-in-vacuum"), this throws off the formatting in the editor buffer: Instead of centering the equation, the combination of label and equation is centered. A similar problem occurs, when left-aligned equations with left-aligned numbering are used.
Screenshot (if not displayed inline: https://imgur.com/a/Y1rDmgE) Made in full-screen mode with limited text-width. Is there some setting in LyX, that allows getting better alignment, without sacrifizing the ability to use long label names? - Klaus