It's a shame that cross-platform GUI toolkits seem to have fallen out of favour somewhat (as in, native toolkits like Qt or GTK). I wish it were not so. I can see why the electron route is so tempting, I just really hate them as a user.

I wrote a bunch of GTK desktop apps with Python like 15 years ago and they were snappy and you'd never even know it was Python behind it, but I wouldn't do that now. Too hard to distribute, bindings a bit clunky, lots more cross-platform testing, it's hard to look at the relative levels of effort and not take the faster path.