Hi, I already asked for support in forums from a week:
https://forum.developer.samsung.com/t/web-extension-for-samsung-internet-for-android/38649
and I have a ticket open from a mounth in:
https://developer.samsung.com/dashboard/support/ticket/500QP00000YpTZ5YAN
No answer, just bouncing balls. Good support indeed.
But don’t worry, Apple Developers Forum is even worse than Samsung.