Have somebody faced such issue like me. I have a samsung galaxy f22 it comes with 15w charger but supports 25w super fast charging. Recently i am facing various issues like the 15w charger only shows as charger connected in the battery and device car...
Its a software issue i got the same problem like 2 months ago and recently got an update now it is fast charging but still i have to restart device sometimes as it only shows charger connected instead of fast charger connected.
Esim has a dedicated hardware. Esim is not that popular in indian region and to reduce the cost and make it affordable for that region they might not have included the esim hardware