How to know if anyone is using 5G+ on android phone?
IMHO.
Go settings, about phone, status iinformation, sim card status, Choose SIM card <-- Samsung
Will tell you NR SA or NR NSA.
SA or NSA, my phone the icon is the same.
While if you are the only limited users of NSA, connectivity performance will be fast. As NSA is being phased out, sooner or later will lead to poorer coverage. As the SIM is an older gen, when roaming, not sure if can connect to full fledge SA network like in China.
But the point is paying for the 5G+ but not getting it. They should know it because they shifted 4G heya users to 5G.
Confirmation
I just inserted my heya SIM with 5G+ plan, before today, I was connected to 5G NSA, today, I am connected to 4G+. Incidentally, my Zym Roam Plus, also no more 5G NSA.
I won't say I feel cheated - because it is not a nice way to say things.
Added Updates
Apparently, it is my location that do not have NR NSA which reverted to 4G.
I tested another location, the NR NSA is back.
The same issues remains i.e. will not have SA if 5G NSA decommission or also overseas not sure if can connect to full fledge SA.