I'd say that for me, it depends on. One moment I'm happily fine thinking in Swedish, and the next: Bam - English I don't even know when I change and I just sort of realize it after a while and yeah it's strange.
I love that they had the humor to do this though. Who even thought of this? Like "You know how the sun shines at a weird angle at this time of day? We should take a picture . sitting in the angle of (Minutes Quotes Thoughts)