I have a FairEmail program, it also has increased the sensitivity of right/left swipe gestures. Perhaps, along with Android updates, there has been an increase in sensitivity in all applications. But FairEmail has a sensitivity settings slider in the settings. I have set it to the minimum and it works more acceptably. So there is an API for applications where they can change the sensitivity. Maybe you should also make such a setup? FairEmail is FOSS, so you can find how to do it in the skin.