I looked into installing citrix for work in March but it looked too hard. Their website package targz for linux was last updated in 2018 and it's looking for webkitgtk version 1.0, also from 2018. In the repo solus is on like 4.x.x. or something.
No amount of linux forum threads on the web could convince me to put in the work.
Here, this person was successful: https://discuss.getsol.us/d/44-citrix-receiver but they didn't have a libwebkit problem as I could interpret.