Yeah, not sure the UK Labour party are going to be receptive to a free speech argument, given recent events. If anything, an updated law might make X liable for the real-world problems it causes.
There was/is a wave of far-right riots happening in the UK, which involved a lot lotting and attacks on Muslims. This was triggered by a stabbing in Southport and a lie that spread on social media claiming that the perpetrator was a Muslim migrant that came to the UK on a 'small boat' crossing the channel (he was actually born and grew up in Cardiff). Musk may be liable because during the riots he made several posts undermining the government's attempts to quell the unrest and his general failure to tackle disinformation spreading on Twitter, such as the Muslim migrant lie.
Arresting people for things they say even when they aren't threats is anti-free speech and the UK and many European countries do not allow free speech. You can be arrested for even saying Israelis genociding Palestinians are Nazis.
First one is about Germany, not UK. Secondly, you do realise wikipedia is unreliable, prone to edit wars and subject to those that have the most passion for a topic (like free speech "absolutists"/racists). It's why academia tell you its a poor reference and to not bother.
Can you find a UK example that you think overstepped the line?
I'm in the UK, critical of Israel and not been arrested yet...
It's always interesting seeing distrorted American views of the UK.