Complaints about the continued absence of MIUI 12 on most Pocophone F1 handsets are mounting, almost three months since the global variant last received an update. Only the Russian version of the Pocophone F1 has been upgraded to MIUI 12, leaving all other variants stranded on MIUI 11.
https://www.notebookcheck.net/The-Xiaomi-Pocophone-F1-is-still-without-MIUI-12-in-most-regions-and-fans-are-not-happy-about-it.496977.0.html