Honestly doing it again I'd just write in xamarin or something not web orientated because as it turns out the web app is going to need to be separate anyway
I might look into capacitor but is that not basically just electron?
I guess you could see it that way, but web views are inherent in mobile operating systems, they don't need to be bundled into your app, so capacitor apps aren't big bloated memory consuming applications like electron apps are. There's a lot of well made apps running on capacitor that you wouldn't even know, especially if you use something like ionic framework to actually have the look and feel of native mobile apps.