The Nordic beam is tightly focussed on Scandinavia and, as you say, would be difficult to receive other than at the eastern most extremities of East Anglia. The European beams are focussed on eastern Europe, but there is a large area of the UK well within the footprint. Actually, it should be receivable across most of the UK with an 85cm dish and I would think that Virgin would use something significantly larger than that. It's a long time since I've been interested in satellite, so I'm a bit rusty. Not to worry though, the footprint maps don't get any harder to read.
https://www.lyngsat-maps.com/footpri...urope-BSS.html
https://www.lyngsat-maps.com/footpri...urope-FSS.html
https://www.ses.com/our-coverage#/explore/satellite/330
---------- Post added at 19:49 ---------- Previous post was at 18:47 ----------
The reasoning behind the above post is that Astra 4A services Ukraine on the European beams rather than the Nordic beam used by TV3's retransmission to the Baltic States. There are more Ukrainian broadcasters on there than just Ukraïna 24. Including the 1+1 channel previously carried on the Worldbox app. Enough to built a small channel package for Ukrainian refugees.