Public service announcement: Linux seems to work completely now on a Lenovo ThinkPad X12 Detachable. Tried Ubuntu 24.04 and everything seems to work fine.
However, to switch ctrl/fn, you need to use the "Vantage" utility on Windows. But the switch persists in Linux.
Para buscadores: el Lenovo ThinkPad X12 detachable parece que todo va bien con Ubuntu 24.04.
Pero para intercambiar ctrl/fn, hay que usar la utilidad "Vantage" en Windows. Pero el cambio persiste a Linux.