Latest updates seem to have broken citrix workspace

After installing the updates yesterday, I couldn't start a session to work anymore.
Because that's about the only actually useful thing my machine does, I ended up reinstalling Zorin 18 core (latest download as of today) and choosing NOT to install the latest updates when prompted. I can now connect to work again, but I don't really like the idea of using a machine that would need patches.
For now, this is more of a warning for others, but if anyone has an idea of how to fix below behaviour, I'd be much obliged.

  • I can authenticate fine
  • download the ICA-file is not an issue
  • When double clicked, it the ICA seems to do something, but
  • The screen reads 'connecting' for about 30 seconds, after which it just dissappears

Do you have made the installation without the app protection component? It is recommended in Zorin to install it this way (select 'no' when you're asked if you want to install it).
I'm not sure if it can help with your updates problem.