I think many commenters supporting the "kill my app" behavior do not understand how bad using the affected devices can be.
The reason I first discovered "don't kill my app" is that my apps would close as soon as I switched to another one, in most cases. For example if I used maps and switched to a call / browser tab / Telegram chat, when I got back to the map the app would reload. My search would be gone, and I would have to set my destination again.
I hope you can agree that this is terrible user experience. If I wanted to save battery, I could have just closed my apps manually, I don't need my phone to take the initiative.
The reason I first discovered "don't kill my app" is that my apps would close as soon as I switched to another one, in most cases. For example if I used maps and switched to a call / browser tab / Telegram chat, when I got back to the map the app would reload. My search would be gone, and I would have to set my destination again.
I hope you can agree that this is terrible user experience. If I wanted to save battery, I could have just closed my apps manually, I don't need my phone to take the initiative.