That's pretty clear. It does depend of what level/technology is used in the Encryption, but broadly, against nation state actors with full virtual and physical hardware access, you are to put it bluntly, stuffed.
To anyone reading this, the link says: "It is unclear whether such rules would apply to companies which don't operate directly in the UK", so it is literally not pretty clear.
That's pretty clear. It does depend of what level/technology is used in the Encryption, but broadly, against nation state actors with full virtual and physical hardware access, you are to put it bluntly, stuffed.