3-phase signalled intersections (where pedestrians get a green signal to cross in all directions) are a relatively new development in the UK. They’re certainly common in London but I’d be very surprised if they’re rolled out to all intersections the UK.
If you want to turn right (in right handed flow) you can enter intersection on red (in Poland when additional green right arrow is lit up) but you have to yield to everybody, also pedestrians (that have green at the time).
In theory you are required to stop before you enter on red but most drivers don't and some don't even slow down more than is physically required to make a turn.
So if a cyclist or a pedestrian appears in path of such car unexpectedly (because there might be high vehicle waiting for green on the next lane) it is a dangerous situation.
And I live in Europe.