What does rail renationalisation mean and who owns UK railways?

The government will take control of TransPennine Express services, which covers Manchester and Liverpool in the North of England, and runs to Edinburgh and Glasgow in Scotland.

Northern franchise ownership to be taken over by UK government

Would U.K. railways be better managed and funded if they were re-nationalised, or are they better left in private ownership? - Quora

Is There A Strong Case To Renationalise The Railways?, Business News

What are the long-term benefits of renationalizing the trains in the UK? - Quora

Britain invented trains. Now its railway system seems to be having a nervous breakdown

Britain's railways doing well despite privatisation, The Independent

Ownership of train operating companies in Great Britain [OC] : r/dataisbeautiful

An overview of the British railway system, Medium

Reality Check: What does nationalising the railways mean? - BBC News

Rail privatisation shouldn't be an afterthought post-Odisha collision. See Japan, UK

ONS says UK rail has effectively been renationalised during pandemic, Rail industry

A blow for privatisation in the battle for British railways - Future Rail, Issue 102

Would U.K. railways be better managed and funded if they were re-nationalised, or are they better left in private ownership? - Quora