As of time of writing, the investigation on the nation-wide blackout on Spain and Portugal is still in progress. As for me, I was stuck at home with legpain from going on a 10 km trek through the mountain the day before, so it was not my fault (at least this time)
People handled themselves quite fine for the most part. Candles, lanterns and portable lamps did the trick during the afternoon. A lot of people are talking about how much the media is inflating the panic.
I hope that the people physically dependant on technology didn't have much trouble and can relax now that this is over, but this made clear that we (as a system) need to have a plan B if something like this happens again.
This year has been one thing after another, it's a bit like how 2020 was crowded with life-altering catastrophes every Tuesday.