StyleFlow
You'd normally keyframe this by hand in After Effects. Variable fonts let the browser just… do it — every letter picking its own weight, slant, serif and size, live. The one rule that keeps it from looking twitchy: never change the same thing twice in a row.
Click the preview to shuffle the word
Tracks
Cooldown
Order
Easing
Duration
sec
Step interval
sec
Step duration
sec
Loop