I'm on MX Linux (based on Debian Buster) and everything went fine following the instructions here:
https://software.opensuse.org//download.html?project=home%3AMasterSoft24&package=cloudcross
But on initial run, it says to run with -a, so I did. It said to follow the link, I did. After I get to the Google page to confirm and allow, I click allow and nothing happens. It just keeps acting like it's trying to do something but nothing ever happens. It stalls. No errors that I am aware of.