Everyone has a limited mental budget for security hassle, and it's a challenge to fit the most important bits of advice into that budget. The hardest bits are those things that are relatively easy to use, but a beast to set up—password managers and security keys.
There's a lot more that could be in this guide, but I've found that it's the most material that I can fit into an hour, and even then the people running for office find it intimidating. However, they are also very glad to get actionable advice, and in a format that is not too technical.
By far the most surprising thing to people on this list is the admonition to turn off anti-virus software.