There's already a thread about Labour's reactions to Cass.
What about the other centrist/left wing parties?
I've just had a quick snoop at some Lib Dems' Twitter profiles. I looked up Ed Davey, Layla Moran, Tim Farron, Sarah Olney and Wera Hobhouse.
Not one of them has reacted to the publication of the Cass report or ever tweeted anything containing the word "Cass".
Most of them have been suspiciously quiet on trans issues recently; again, in most cases I can't find any recent tweets containing the word "trans" other than in the context of the Trans-Pacific Partnership or the TransPennine Express.
The not-so-honourable exception is Wera Hobhouse, who quote tweeted Pink News yesterday saying, "70% of trans people face transphobia when accessing general health services. People need to be able to access vitak gender-affirming healthcare. Yet the Conservatives are intent on using their lives to fuel a culture war and create even more barriers to life-saving services." NO MENTION of Cass whatsoever.
Let's look at the Greens.
Caroline Lucas has also never tweeted about Cass. No tweets about trans issues this week but fairly regular tweets making general comments about transphobia and transphobic hate and accusing the Tories of stoking a culture war.
Same story for Carla Denyer and Adrian Ramsay.
I can't be bothered to Twitter stalk half the SNP but it's the same story for Humza Yousaf as well.
All these people have been tweeting about anything and everything except Cass for the last two days.
At least Labour isn't pretending nothing has happened.
TL;DR: As far as I can see there has been absolutely zero reaction from these parties.