I am currently mixing a project and find myself facing the same
question that arrives every time I have a track with vocals.
Vocal reverb as a channel insert or as a send.
Generally on backing vocals a send is most suitable, but
I seem to constantly be testing on lead vocals.
While it is typical to have a dry or slight delay added to
lead vocals now, rather than reverb, most of the people I work
with want to drown their voice in reverb as it helps ( in their minds )
to obscure all the flaws that they hear.
Normally I end up using a send, and keeping the reverb return
on it's own channel, and keeping it low in the mix.
Basically to the point where you only realize it was there when you mute it.
Most of my studio experience is from the days when we recorded
on tape, and you had limited options for how to use effects.
So I just wonder what is typical for the rest of the site members.