I have noticed the battery too! I know the beta has more analytics and logging running that accounts for some of it. But I tell you I am so happy to pay in some battery cycles for getting rid of that bug. The times where it went to the multitasking screen instead of home is when I nearly chucked the phone at the wall. When I was doing troubleshooting with Apple a week or two before the fix, I kept a log of every single stutter for 24 hours. I originally told him "about 50 times a day if I had to guess". Oh boy was I off. I recorded over 200 occurrences with timestamps and all. And I felt like it was a light day of usage for me too. Oof.
I grabbed my wife's phone today I noticed it immediately and it brought me back to it. I was considering going to Android for a while until it was fixed lol. It drove me up the wall.