Is there a way to stop Android from closing apps?

[Kaepernick]

I have a game on my phone and it used to stay open after I switched to other apps and back. Now, if I switch to a different app like a browser or something and then switch back, I have to restart the game more often than not. It's super annoying. It does it even if I have only one other app open that I'm switching to. I know it didn't happen this frequently on Nougat. Is there a way to make it so it keeps the game open as I look through other apps?

 

[Jbb3393]

Have you checked to see if you are optimizing the app? This might help...?
Settings/battery/battery optimization.
This is how I get there on my phone.

 

[Kaepernick]

I fixed it by downgrading from Oreo to Nougat 7.1.1. Now it isn't nearly as bad. I don't know if it's just HTC or what, but their late updates just seem to suck. I really don't have any desire to try Pie on this phone.