What variable fonts changed (and didn't)

Variable fonts have been broadly supported for years. Most of the projects we audit don't use them, or use them badly.

What we use them for

Optical sizing axes. Type that adjusts its design subtly between display and body sizes. The opsz axis is genuinely useful and almost always invisible to users - which is the point.

Weight transitions. Hover states that shift weight from 500 to 600 feel more elegant than the old swap-fonts approach.

Performance. One file with multiple weights cuts the request count and the byte budget.

What we still don't use them for

Animation. The "letters that morph between weights on scroll" demo is excellent but reads as "this site has a budget for tricks." Most clients don't need tricks.

Per-character expressive type. Variable fonts can do per-glyph variation. This is mostly art-directed editorial work, not the work most studios do day-to-day.

Custom axes. Most variable font axes outside weight and optical size are still too inconsistent across foundries to base a system on.

Treat variable fonts as quiet wins, not headline features.