I think the sub-headline (not quoted) is apropos...

... 20 lessons for the post-truth world ...

OK, I'll cite the first five from the article...

...
1 When someone tells you who they are, believe them. Last week Donald Trump appointed a director of intelligence who spouts Russian propaganda, a Christian nationalist crusader as secretary of defence, and a secretary of health who is a vaccine sceptic. If Trump was seeking to destroy American democracy, the American state and American values, this is how he'd do it.

2 Journalists are first, but everyone else is next. Trump has announced multibillion-dollar lawsuits against "the enemy camp": newspapers and publishers. His proposed FBI director is on record as wanting to prosecute certain journalists. Journalists, publishers, writers, academics are always in the first wave. Doctors, teachers, accountants will be next. Authoritarianism is as predictable as a Swiss train. It's already later than you think.

3 To name is to understand. This is McMuskism: it's McCarthyism on steroids, political persecution + Trump + Musk + Silicon Valley surveillance tools. It's the dawn of a new age of political witch-hunts, where burning at the stake meets data harvesting and online mobs.

4 If that sounds scary, it's because that's the plan. Trump's administration will be incompetent and reckless but individuals will be targeted, institutions will cower, organisations will crumble. Fast. The chilling will be real and immediate.

5 You have more power than you think. We're supposed to feel powerless. That's the strategy. But we're not. If you're a US institution or organisation, form an emergency committee. Bring in experts. Learn from people who have lived under authoritarianism. Ask advice.
...

imo, the entire article is worth a read.