Question Apps being aggressively closed following June update! - Google Pixel 6

Hi folks,
I'm wondering if anyone has a solution to this: Immediately following applying the June update, I noticed certain apps (crucially, Angry Birds2) were being closed in the background as soon as I switch to other apps. Previously, I could have AB2 open, go do other things on the phone, come back half an hour, and AB2 would still be open. Now, even brief switches to other apps results in it being closed.
Figuring it had been switched to a higher level of battery optimization, I checked the AB2 app and made sure it was still Unrestricted (it is).
Battery Saver is off.
Adaptive Battery is on, but it was before the update too.
What other settings do I need to monkey with to fix this?
Thanks in advance!

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Developer options>standby apps, check bucket state of app. It should be active.
If that's the case disable all global power management. If disabled all buckets show as active and their state can't be altered.
Google global power management never worked right. Turn all that junk off.
Deal with power hogs on a case by case basis instead. In settings individual apps can be set to not run in background without invoking global power management.

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blackhawk said:
Developer options>standby apps, check bucket state of app. It should be active.
If that's the case disable all global power management. If disabled all buckets show as active and their state can't be altered.
Google global power management never worked right. Turn all that junk off.
Deal with power hogs on a case by case basis instead. In settings individual apps can be set to not run in background without invoking global power management.
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Click to collapse
For AB2 it shows "exempted" and is grayed out. What does that mean? Meanwhile I'm turning off Adaptive power. Anything else I need to turn off, while I'm at it?

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Frankenscript said:
For AB2 it shows "exempted" and is grayed out. What does that mean? Meanwhile I'm turning off Adaptive power. Anything else I need to turn off, while I'm at it?
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Click to collapse
Exempted? More like KIA Erratic behavior is typically what it causes on my Samsung's.
In power management the only thing I enable would be fast charging if you want that.
Not familiar with Pixel settings but they are similar as it's a Google Android based subsystem.
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
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Sadly all similar settings are now turned off and the phone has been rebooted. AB2 still closes nearly instantly when I switch to another app. Sigh.

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Frankenscript said:
Sadly all similar settings are now turned off and the phone has been rebooted. AB2 still closes nearly instantly when I switch to another app. Sigh.
Click to expand...
Click to collapse
Try clearing app cache.
More drastically delete data or reinstall it.
It may be the app itself is no longer compatible now and needs an update.
On a Samsung my first choice would be to clear the system cache found on the boot menu. I've been told Pixel's don't have this option.
Personally I avoid all OTA updates as they can and do break things. Pie and above are fairly secure if you don't do stupid things.