Thanks! It is possible to embedded Forms if it is used in a web-based page (e.g., H5 within mobile). What if we want to use in a different channel (MiniApp) that can not render website, and use different frontend technologies instead of HTML/JS/CSS/.
Forms created using AEM can be leveraged across the web and mobile channels. OOTB with AEM Forms, you can create forms once, preview the look and feel across devices, and publish to any screen size. For more details, you can refer to the features- https://business.adobe.com/in/products/experience-manager/forms/features.html
In case you need any further assistance, please elaborate on the problem statement.
There is a headless form tech in beta that could also be a candidate for multi channel support including apps. You could consider using it for your use case.
small devices/tablet(browser experience) : same form can be used if you make sure the clientlibs/theme are handling the device-specific rendering via media query