Prominent backbench MP Sarah Champion launched a campaign against VPNs previously, saying: “My new clause 54 would require the Secretary of State to publish, within six months of the Bill’s passage, a report on the effect of VPN use on Ofcom’s ability to enforce the requirements under clause 112.
"If VPNs cause significant issues, the Government must identify those issues and find solutions, rather than avoiding difficult problems.” And the Labour Party said there were “gaps” in the bill that needed to be amended.
Pretty much every single website uses HTTPS these days which means all traffic is encrypted anyway. Instead of a VPN you could use an encrypted proxy that connects over HTTPS. I doubt the UK is just going to completely cut itself off from the rest of the world’s internet (because all it takes is one path out).