I hope that when Google restricts sideloading in Android it motivates some more folks to learn about how much of the functionality of common apps can be done via the best unwalled app distribution system in the world. (The web.)
PWAs can work offline, receive push notifications, talk to Bluetooth devices, and much, much more.
We actually now have the capability that Steve Jobs pretended would be the way mobile apps would be built (before he had the ability to collect rent from developers.)
Even if you're familiar with and have built PWAs, I bet there'll be a demo on the site I linked to that you didn't know was possible.
You can also fill the apps with bloated frameworks and libraries to make them huge and slow just like you do with native apps!