Have you tried clearing cache? (I've configured the server to be a bit more aggressive about caching to improve load speeds, but JS bundle updates should be available instantly.)
I've just tested on Chromium 118.0.5993.70, Firefox 118.0.2 and Safari (iOS 17.0.3) and the issue seems to be gone.
Thanks for reminding me.
Update: Fixed. (Expected this to require a rewrite but... it was just a matter of passing one option to react-router.)