Nokia 2.4 and Nokia 5.1 Plus started receiving March security patch. The update for Nokia 2.4 is 18.15 MB in size and available in Europe for model TA-1270.
Probably the other models should be receiving it, but do check and come back if not.
Nokia 5.1 Plus also got the update, and so far the users in India are reporting it is available. The update brings March security patch and it has 21.09 MB of patches.
Thanks all for the tip 😉