Yes, the situation is as I expected. Automatic can cause subtitle burning even though it’s not needed.
One example is ASS subtitles on Android. Having the setting on “Automatic” will cause subtitle burn in while “Image formats only” will not. Ok, no problem one might think, I’ll just set it to “Image formats only” and prevent further unnecessary burning.
But no. Having it set to “Image formats only” can now cause picture based subtitles (I tested this with VOBSUB) to be burned in even thought they play just fine in “Automatic”
Why can’t we have a subtitle setting that is the best of both worlds and avoids subtitle burning all together in those situations it’s really not needed?
And by the way, why would one ever want to burn image based subtitles instead of natively play them?