Apps Killing in background

[hasantarmaster5]

Apps are getting killed in background in every 10min if I'm not using it. On android 9 apps stayes in ram but in android 10 apps are getting in every 10 min. I have off the every option of battery optimization. But still apps are not staying in ram.
I need some of my applications to run in background so that other apps can run properly
Anyone can help me?
Thanks

[hasantarmaster5]

Adaptive battery = off
Dont optimize particular app - Done
I also included that app to optiflix so it couldn't optimize and stay in ram but don't work
@CH_ASUS

[hasantarmaster5]

Any solution on this ?
@CH_ASUS @Anders_ASUS @LP_ASUS