Not absolutely necessarily, I think.
My personal situation is that I have moved to a rural village where there is next to nothing - just a communal WiFi tower that works when it damn well pleases. We are, however, going to get FTTH come next August and no, it's not a pipe dream. it's really happening.
Right now, Orange is laying the fibers and will control the backbone, but other operators are allowed to come in and manage the last mile. There are two available right now, one is obviously Orange, and the other is a local telecoms company that already manages connections elsewhere in the region. There may be more operators signing on shortly - or not.
In any case, if I were absolutely anti-Orange, I have a choice. I don't have to go to Orange to use that connection.