reminded me more of Expo, but looks like it might be friendlier to newer devs, designers who want to make an app, or just someone who knows their app will stay within certain boundaries.
Another option I like, which takes some minimal custom native programming, is to use Android/IOS native WebViews load your mobile-web app and use it as a mobile app.
I use Expo everyday. Expo is more like a supercharged React Native + SaaS. This is apparently also built with React Native but somehow does not expose RN to user (didn't look into docs too much)?
If it's too obvious that your app is just a web-app shell, you risk rejection from the iOS app store at least, and they'll tell you to just use the 'bookmark website as app' thing. Needs to still feel like a native app, which is possible but more work.
Another option I like, which takes some minimal custom native programming, is to use Android/IOS native WebViews load your mobile-web app and use it as a mobile app.