> 1. Giving them something interesting to work on
2. Showing them that they won’t gradually be asked to take on BS assignments over time
3. Letting them take every friday to go fishing or whatever it is they do
#1 would have been fine, for me. When I left my job (after 27 years, running a C++ image processing shop), I was looking for work that was interesting to me. I had my retirement set, and would have been quite happy to take a good deal less than many.
I have a pretty vast and varied skillset. I'm not famous, and never have been interested in that stuff, but I did work for a very well-known company, at a pretty deep level. I had an almost "perfect match" of skills for a startup (and I didn't mind taking a bit of a risk, as my retirement was set, anyway). I was looking for places where I could make a difference.
I also have an enormous portfolio of work, so there's absolutely no question at all, about what I can and can't do. Take fifteen minutes, browsing some of my repos, and it will tell you a lot more than some "Draw Spunky" leetcode test.
I was appalled at the way that I was treated -even by small shops (actually small shops and recruiters were the worst. Big shops treated me fairly well, but didn't have a compelling draw). I have come to learn that this was directly because I'm older. I was unaware of the animosity so many young folks have against us; but I am now painfully aware of it.
In my case, I just gave up, and accepted that I'm retired; whether or not I want. I found some non-profit folks that couldn't afford to pay me, and I work with them. I pop out a couple of small apps; from time to time; just to stay in practice, while I work on bigger stuff.