Not too much: if I understand correctly, there is a delay up to 2027 to "rip and replace"; over seven years, a good proportion of the network equipment would be retrofitted anyway. This is going to cost more for the UK telcos (BT, Vodafone and Telefonica), considering that "cheap" Huawei will have to be replaced by a more expensive Nordic (Nokia or Ericsson), but it will be spread out over 7 years.

This won't prevent the telcos from crying foul and demand generous government subsidies; surely, you didn't think they would reduce the shareholders dividends or the bonus packages of their execs, now did you?

Situation in France and Germany, the two other big telecom markets, is a bit different: Germany is not keen on ditching Huawei and the Merkel government is looking at "re-energizing" trade with China. As for France, 5G deployment is not started yet and equipment choice will be subject to "authorization" on a case by case basis, probably relegating Huawei to the fringes of the network.