I have read stories about people who have scanned their NHS passes using the German Corona-Warn app and it reissues it signed by the German authorities, which is thereby accepted as an EU vaccine pass.So apparently in Portugal to get into hotels or restaurants you need an EU COVID vaccination pass or a negative COVID test. The NHS pass is not recognised. I don't really fancy two weeks of sticking sticks up my nose, so I might change my flights elsewhere.
Romania looks good - about 1 case per 100,000 people, still amber list so flights are quite cheap, entry is just the NHS vaccination proof and no PCR even though we are on the red list, and we can still have a decent wine, food and history holiday.
I have all the apps but I do not have my second vaccine until Sunday so haven’t been able to get it to work.