IPTV ADVISE

Hello folks i'm new to IPTV and after some advise, i downloaded smart IPTV on my smart TV (LG) a while ago and really know nothing about it, my questions are:

1# is smart IPTV still supported
2# my friend had smart IPTV and had the 7 day trial after the 7 days he bought the app and lost his service and had to buy again?
3# is the any better smart TV apps
4# Do i need a VPN if any recommendations
5# and just any general advice about what to do and what not to do

Thank you
 
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