Conservatives drafted the OSA in 2021.

Reform are against it https://www.theguardian.com/politics/2025/jul/28/reform-uk-v...

Even the more extreme Restore are against it, and against Digital ID https://www.restorebritain.org.uk/restore_civil_liberties

The Greens are ... well they wanted to amend it in 2024 to include a ban on fake news, but that could turn into a mechanism for censorship.

And Lib/Lab/Con were all for building even more on top of it in 2024: https://www.handleygill.co.uk/handley-gill-blog/general-elec...

There are no 'liberal' parties in the UK.