If your S10e is the SM-G9700 model, it's still worth a try as it also has the Snapdragon 855 (Exynos doesn't have this problem as far as I know). I understand the safety concern, I haven't had much luck with this on several other forums either
Anyway, I've submitted a ticket to Samsung HK support, hopefully they'll look into it for a future firmware update. This is a legitimate issue that you may run into with the HK model, so potential importers beware, unless you have no qualms with choppy 4K playback in certain formats.
Ah no, mine is the Exynos version as it's a UK network provider model!