Should I do a delta calibration when I switch between print surfaces?

General Discussion
4

By the code of SET_GCODE_OFFSET and G92
I would say following:
G92 - will update just base_position - current position of a toolhead
SET_GCODE_OFFSET - will do the same update of base_position but additionally it will update homing_position - which will be used on next homing sequence

So I would say SET_GCODE_OFFSET - offsets will survive G28 (Re-Homing) but not klipper restart, G92 - offsets will be reset after G28 (Re-Homing)

Yes PROBE is just prints bed height to the console, but it also remember it in internal variable probe variable
so you can build simple MACRO which can use it and invoke G92, something like this:
P.S. this is simplified macro which just use probe value for new Z position, it needs additional calculations as current position of toolhead most probably is different than when it was probed

[gcode_macro APPLY_PROBE_TO_Z_OFFSET]
gcode:
  {% set z_probe = printer.probe.last_z_result|float %}
  {% if z_probe > 0. %}
     G92 Z{z_probe}
  {% endif %}

Then you can call PROBE and then your MACRO, but those should be called separately, they can’t be joined under single macro because MACRO will not see updated variables in PROBE.

You still can override G28 and include PROBE there and integrate APPLY_PROBE_TO_Z_OFFSET into your START_PRINT macro as G28 and START_PRINT are called separately.

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