Does text in Jetpack Compose have support for Kerning?

Is this Android? You can set letterSpacing in the TextStyle in AndroidX Compose UI.

Is letter spacing and kerning the exact same concept?

You could adjust the spacing of individual characters using AnnotatedString I suppose.

in your typography theme using

TextStyle

you can control letterSpacing (aka kerning, the spacing between the letters, the higher the number the bigger the gap)

val caption: TextStyle = TextStyle(
        fontFamily = roboto,
        fontWeight = FontWeight.Medium,
        fontSize = 12.sp,
        lineHeight = 16.sp,
        letterSpacing = 0.5.sp
    )