Is a satellite system still necessary in new buildings, or is IPTV sufficient?

IPTV in the classic sense is the reception of the plain old TV channels over the Internet, instead of DVB-C, T or S. ARD, ZDF, regional channels, private channels.

In the end, viewing habits determine the installation options: We hardly watch any linear TV (and very little otherwise). If at all, only public broadcasters via media library (private channels are unbearable anyway), the kids YouTube - or Netflix. So maybe not an objective opinion, but I still consider satellite/antenna to be the CD of our time: You can still have it, but in a few years people will smile about it. From my point of view, only digital transmission methods are future-proof. Surely someone will object, "But what about in times of crisis?". But if the power is out, it doesn't matter anyway. Medium wave on the radio is practically gone too. The better is the enemy of the good.

Quick side question, is it still true that the neighbor with satellite shouts "goal" 3 seconds earlier during the Euros (then next year) than the neighbor with cable or IPTV?

So it is with me (Sat vs 1&1 TV). It even tends more towards 10 seconds...

Thank you, with that the decision has been made for me

Which EM?

The one that, as I wrote, will take place next year, as it looks. Or do you believe that all sporting events will be canceled for the next 50 years?