I'm sorry but ram management on iOS 11.x has been absolutely horrendous.
Here's an example, I'm on YouTube watching a few videos and decide to pause and check my email. I check my email and then decide to edit some pictures on VSCO Cam and Lightroom. Once I'm done I decide to go back on YouTube and what do you know, the app has to reload and I'm back on the initial screen having to go back to my history to pull up the video I had just paused minutes ago.
I was thinking this would get better once iOS 11.x was optimized some more but holy crap it's just getting worse.
I have an iPhone X running iOS 11.4 B2.
What's everyone's thought on this problematic issue?