There are significant differences; under the UN scheme, refugees are taken from conflict zones to Rwanda whilst their applications are processed by UNHCR. They will either gain asylum in a destination country, or find a safe route back to their country of origin. They will only stay in Rwanda if they choose to. Under the UK scheme refugees are flown from a "safe" country to Rwanda, and their applications are processed as if requesting asylum in Rwanda itself, there is no option of an alternative destination country. If this application fails they may well be deported back to their region of origin, regardless of risk of harm.