[watercooled]

That was said about 4G and 3G before that, and it makes as little sense now as it ever has. Line-of-sight speed tests to an empty cell are one thing, real-world network performance when people actually starting loading down the network is quite another.

Generational network upgrades allow fixed and mobile networks to keep usable pace with one another, but are not direct competitors nor replacements except in a few edge cases.

BT are perhaps best placed for a view of both markets at the moment, and they're hardly slowing on either fixed or mobile.

If Virgin/O2 were to slacken off on either fixed or mobile, they would be pushed out of the market by their substantial rivals - three sizeable competitors are pushing 5G rollouts and the national FTTP rollout is gaining momentum. As it stands, Virgin's network is very well placed to compete in this market and it's not in their interest to give up their customer base to competitors who would happily take it from them.