No, guidelines specifically say only once charged, people may be named, in line with the principles of open justice.
Sources: https://www.judiciary.uk/wp-content/uploads/2022/09/Reportin...
https://www.holdthefrontpage.co.uk/2023/news/huge-victory-fo...
https://www.college.police.uk/app/engagement-and-communicati...
Being a suspect and being charged are different things.