I love the question and hope to see some good responses here.

If someone reading this has Ryan Mcbeth’s ear they might want to point him to this post. He’d likely have good suggestions. Here’s one of his lectures on disinformation: https://www.youtube.com/live/THfi_lxBvW0

Edit: Here’s another much shorter video of his on disinformation: https://youtu.be/DZ6eMYW7Xwc

In the past, what has worked for me is to configure the routers to disconnect clients whose signal level drops below a specified threshold. Clients aren’t savvy about this / will stay connected to a poor signal when a better one is available. You’d have to look at router-reported signal levels in your physical space to figure out where to set the thresholds.