Hope you’re doing pretty well.
Is there a way to share/send an app once it was installed using the app-bundle functionality?
The Play Store has a share option, you would share the link, with your friends and they can download a lightweight version of your app.
If you just want to test your app with small amount of users you can try to set up an open, closed, or internal test on the Play Store.
Sharing this apk file with other devices if not a good idea. Because It’s very likely that this apk will not work properly or entirely on other phones.
When the Play Store downloads an app using App bundle, it only downloads a custom
version of the apk file that just includes device configuration specific, that necessarily match the other devices. That’s where storage gain came from. Between devices, many configurations can defer letting the app too many issues.
An example could be that the langue that the user had in its phone was French, for this reason, the Play Store only downloaded an apk with just with the French language when you share this apk with other user everything will be in French.
A worst case could be that the devices have different CPUs and instruction sets the apk will not work at all in the other devices.
Is there also a way to tell the Play Store to avoid downloading apps this way, and use a normal APK instead?
I’m not sure if there’s one, but I don’t think that a user can have so much control. I think It’s more like an internal detail of the Play Store.
If you have any questions just let me know!