I am using bibstyle=apa6 that can only show 6 authors. How to show all authors?
\RequirePackage[bibstyle=apa6,sorting=ymdnt,uniquename=init,defernumbers=true]{biblatex}
\printbibliography[heading={subbibliography},title={Journal Articles},type=article]
maxbibnames, butbiblatex-apa6uses a more complex name format, where you have to use thebiblatex-apa6optionapamaxprtauth. See https://tex.stackexchange.com/q/230452/35864. – moewe May 14 '22 at 23:27