I just cannot even begin to think of the problems associated with shutting everything down and attempting to bring things up one at a time then resetting it all.
Be glad you have a choice. In my neighborhood, power from the local utility has gone down 3 times this year, due to blown transformers and such. A couple years previous, the power utility purposely shut down power nearly city wide due to fear of fires in high winds.
Each time I grabbed a battery, plugged in my radio, and found the RF noise floor had dropped significantly. Used to be down to S0, until a few more nearby houses added solar panels. Now the noise only drops a couple S units.
I kill the main breaker, and all the room breakers, until after utility power comes back on line. (This could potential avoid damage from possible utility start-up surges.) When power was again available, I could flip the household breakers back on one at a time to hunt down my RF noise makers. (Mostly networking cables, as expected.)
But powering the whole house back up is much easier than in the old days. Used to be that I would have to reset thermostats, VCRs, answering machines, outdoor lights, about a dozen clocks, and other stuff that I can't remember. Now all the newer stuff resets itself, except for the clocks on 2 older appliances, and a Raspberry Pi server where I manually restart some of the SDR services that I haven't fully configured.