There have been many users reporting that when trying to switch between apps, they found that they had to wait for the app to reload as it appears that the Pixel 3’s software killed the apps potentially due to low management. Various members of the media have personally confirmed this to be true, such as Daniel Bader from Android Central, The Verge’s Dan Seifert, and Artem Russakovskii of Android Police.
It is unclear as to what might be causing the problem, but Android Authority points to a tweet by Flash Kernel developer Nathan Chancellor who speculates that it could be due to Google’s switch to Android Low Memory Killer Daemon, where he thinks that Google will need to fine tune it further in order to prevent it from being so aggressive in killing off apps in the background.
2a. The memory issues that some people are complaining about may be due to the switch (https://t.co/LTsuCgw8Pm) to lmkd (a userspace low memory killer implementation): https://t.co/VhgRUYNJMR
— Nathan Chancellor (@nathanchance) October 21, 2018
It is possible that this could be one of the reasons why the iPhone Xs Max managed to smoke the Pixel 3 XL in a speed test. Other software-related problems users are experiencing include photos that disappear after being taken, and some users are reporting hardware problems where their speakers are buzzing.