Telecommunications is still led by small groups of companies. Giant backbone providers stitch the internet together. Telecoms providers within a country, the ones that actually have hardware in the field, can often be counted on one hand, and often in one hand after a fireworks accident. 5G/6G/7G research is led by a small handful of companies that actually build the switches, transmitters, and modems. Cell tower frequencies are sold to a tiny group of carriers that sublet their network equipment to smaller companies they eventually buy up (if succesful) or disappear from the market (if not succesful).
Fiber rollout in countries where a government funded phone line rollout has already succeeded is laughably slow, taking decades and many billions with little to show for it. Even in countries where no phone lines were rolled out back in the day, fiber is more and more being skipped as 5G allows for cheaper (though less reliable and less capable) deployment.
I'm not saying monopolies are good or anything, and I think our problems would be even worse had we stuck to the monopolist systems that brought us telecoms as we know it, but I wouldn't consider the industry one where there's enough competition to drive innovation, especially since at least half of the entire sector is competing against Chinese government-controlled companies with seemingly endless coffers.