ahha! One of the things that was said spurred me to try something - so, the "app" I have been using is a PWA (progressive web app) - if I just open up the actual site, guess what...
It works great!
I'm not getting a ton of value out of the PWA, so, I think that the easiest thing for me is to just use the website. I rarely am out of site of the Internetz, so...
Thanks for the suggestions. I will spend some time debugging the PWA thing in the future, but for now - just gonna run it in chrome.
(it was the suggestion from @Airy that I try safari that got me to just say "hmmm" I wonder...)
I am going to play around with some of the other debugging steps, like the interactive help (something that I didn't know existed). Is there a good place in the documentation that is a "hey start here if you are having problems"? I will read over all that.
Thanks again for helping me. I also appreciate the help from @Nige_S - I was watching the log folder, and it was funky watching it activate perfectly with the KM window around (but the image hidden, natch), and then not even activating with the app window forefront - having changed nothing other than the order of the windows. I tried a bunch of stuff having to do with where it was detecting the image, but it was doing that just fine.
@peternlewis I'm going to dig into the interactive help. Thanks for the pointer to that.
This is a fantastic group, and I feel very fortunate to have gotten the help I did in such a timely, friendly fashion.
I hope everyone is having a spectacular new years eve. I'm doing exactly what I want to - just hanging out pissing around. I do a lot with AI, and so now, I'm going to go play with Claude and its local machine control capabilities via the model control protocol. (MCP)
I want to, just for fun, make Claude aware of KM via MCP and see what we can do together. I'm sure someone else has done it already - I'm just doing it to learn. I am finishing a book (well, a couple books) on AI for businesspeople, and I think this will be an interesting use case.
But, you know, I digress. 
Thanks!