The FSU is entirely a product of the “culture wars” of the outrage manufacturing twitterati, and offers to protect members from “feminist professors”.
The UK’s Open Rights Group is the closest thing to a UK EFF (founded by Doctorow), and is generally a better source for policy like this.
Here’s their wiki page on the Online Harms Bill[1], and opinion on its policy impact[2].
[1]: https://wiki.openrightsgroup.org/wiki/Online_Harms_white_pap...
[2]: https://www.openrightsgroup.org/publications/org-policy-resp...