When I trigger a floating webview while the current desktop is a fullscreen application, the webview will instead render to a normal desktop (I believe it is the last one used before the fullscreen app). This can be shown when I switch from the fullscreen app back to the normal desktop.
I would like the floating webview to instead render over the fullscreen application. If possible, I would ideally like an option in the webview preferences for how to handle mouse and keyboard focus individually (e.g. for both mouse and keyboard send events to either the fullscreen app, the webview, or maybe even both), and of course, when the webview is exited, return mouse and keyboard focus to the fullscreen app. I know this behavior is possible within MacOS, because other applications, such as Alfred, can render over fullscreen apps, intercept input, and return focus back to the fullscreen app when closed. Whether MacOS Webview allows for this might be a limitation.
It does seem that the latest alpha uses an updated Webview (which unfortunately crashes BTT when launched at the moment), which may automatically resolve this issue, but if it doesn't, this feature would be greatly appreciated so that I can fully utilize custom UIs throughout the system.