In the middle, there is an acceptable range of compromise. Social media is the new town square. People shouldn't be able to post stuff on there without recourse for lying and spreading misinformation, just like they shouldn't be able to do this in public. History shows that this leads to bad outcomes. Also, history also shows that we can't just have personal freedoms unrestricted.
And just because that "freedom" is being taken away, doesn't mean that the leftists are in charge.
Now of course this is about the UK. But to my knowledge and based on research there are no laws or cases about lying in public. As long as you aren’t committing perjury or slander, or urging violence, or inciting a panic, this isn’t illegal.