What should we use instead of initstepslew derective in chrony-4.* or later?

Issue

From chrony-4.x (RHEL8.6) or later version, initstepslew seems to be deprecated.

# man chrony.conf
 initstepslew step-threshold [hostname]...
   (This directive is deprecated in favour of the makestep directive.)
[...]
 The initstepslew directive is functionally similar to a combination of the makestep and server directives with  the iburst option. The main difference is that the initstepslew servers are used only before normal operation    begins and that the foreground chronyd process waits for initstepslew to finish before exiting. This prevent programs started in the boot sequence after chronyd from reading the clock before it has been stepped. With the  makestep directive, the waitsync command of chronyc can be used instead.

What should we use instead of initstepslew derective in chrony-4.* or later?