Yes back when flying a Lear 25....but no now. Modern corp jets just dont burn any fuel on the ground and its fairly rare to wait more than 5 mins to depart (at least for us)

An issue would also be all the self-tests/checks that happen prior to leaving the ramp, and on our plane these require all engines running. Single engine taxi is just not practical, many of these planes are not designed for it.

We will, however, just pull over and shut them all down and leave APU on if notified of a substantial delay...weather etc...that may happen after we taxi (again, rare)