Not necessarily. We receive Freeview via t'Internet.
Is that "Freeview" I get TV, and to be frank not a clue how it gets to the TV, as my SkyQ box decides on that. Some is satellite and some internet, some is free, some is part of my package, most of the time I don't need a password, and I really don't care how it arrives at my TV as long as it does.
We have "Freeview" for what it is worth, and we also have "Freesat" and "Free to Air" the latter also satellite, but without the program guide which is part of "Freesat" and two very different internet services, one broadcast and the other peer to peer, the only difference to me is one requires a TV licence the other does not, but since I have a licence I don't care which it is.
There are some programs where it asks if you have a licence, but there was an internet provider called catch up TV which was broadcast not peer to peer.
As to actual "Freeview" it can be more to do with not receiving as receiving in some areas. I did live in North Wales, on a hill overlooking the Wirral there were repeaters, and two main transmitters, Winter Hill, and Moel-y-Parc, and an ariel high up would pick them all up, even Midlands TV at times, and the TV was forever asking for a retune and also cross channel interference.
So my aerial was very small, and mounted on the garage wall, so it would only pick up Moel-y-parc, and the house shielded the signal from Winter Hill, I could get Winter Hill using my HB9CV which was designed for the 2-meter band ham radio, the signal was that strong.
Here I can get Moel-y-Sant, but a bit pointless, as half the channels are missing, can't see the point in fixing the aerial, and a satellite can be mounted much lower, so easy access, so simply not worth putting an aerial up.
But it is so dependent on where you live, even when I lived in Suffolk, not a hill in sight, still there were problems with isotropic propagation, and getting Dutch TV instead of English. The problem in that case was the transmitter's aerial was too high.
There is no one system suits all, and copy neighbours is likely best advice.