Does switching user accounts in Lollipop affect battery life or performance?

I recently updated my Moto G2 to Android Lollipop via OTA update. I've successfully installed the update(around 500mb i guess). I saw the new feature of adding new Guest and New user acccounts just like the one in PC's so that one user doesn't get access to other user apps or data.

So, say if I have some 10 apps running in my owner account and it drains battery while running in background. But then if I wanted to switch to a guest account to lend my phone to a friend or some stranger, I cannot see any apps running in the guest account in the recent apps section that was open in the owner account. So my question is,

Will those 10 apps that are opened and still running in the background in my owner account drain my battery while the phone is in Guest mode?

or only the app that runs under my guest account will have an effect on my phone's battery usage.