I\’ve gotten this to work twice now, but forgot what I did the first time, so I figured I\’d write it down in case I need to do it again.

First, install ClamAV (since I\’m required to have antivirus installed):

sudo apt install clamav

Download the Citrix receiver.

https://www.citrix.com/downloads/workspace-app/linux/workspace-app-for-linux-latest.html

(I used version 23.3.0.32, as evinced below.)

Install with dpkg:

sudo dpkg -i icaclient_23.3.0.32_amd64.deb

(Note that the command above only works from the location where the file was downloaded.)

Copy/link the ssl certificates to the correct directory:

sudo ln -s /etc/ssl/certs/* /opt/Citrix/ICAClient/keystore/cacerts/

I think that\’s what finally worked, but I had also done the Mozilla copy, too:

sudo ln -s /usr/share/ca-certificates/mozilla/* /opt/Citrix/ICAClient/keystore/cacerts