Sorry I’m late to the party, but I ran across this website that goes in depth in arguing that Lazarus was the one who wrote the fourth gospel:
http://www.thedisciplewhomjesusloved.com/
I feel it convincingly argues Lazarus was the one who wrote the gospel and also he was not an apostle.
https://debatingchristianity.com/forum/viewtopic.php?p=957872#p957872