It does, actually. Do a loop around the doubled letter. It's a common swipe gesture on most keyboards, IIRC, for at least a decade. Not sure why it's hardly ever mentioned. iphones only got it a few years ago.

So for feel, you start at F, go to E, loop once, then L. For fell, start at F, go to E, then loop on L. Very easy to pick up as a physical habit.

I just tested those two on futo, and it easily picked them both out.