Default Apps restarting?

I don't know if restarting is the right word for it but every time I leave an app and go into another app and then come back to the first one, it restarts.

For example: in Tapatalk, if I'm viewing a thread on something and I want to go into settings; when I come back to Tapatalk, I have to navigate all the way back to the thread again instead of it popping up in the first place as it should.

At first I just thought it was power saving mode killing off all background processes that were not front and center. But this issue persists even when power saving mode is off. I also tired increasing the background processes limit in developer options. no luck.

I feel like there is a simple fix for this so any help is appreciated.