In order to cross-check some other issue, I tried to install the non-steam version.
Paste of the attempt: https://pastebin.com/cyf6YjKi
The interesting line - which might also explain this issue - is:
qt.network.ssl: Incompatible version of OpenSSL
[planetmaker:~/Downloads/ryzom_installer_linux] [base] 15s $ openssl version
OpenSSL 1.1.1d FIPS 10 Sep 2019
Paste of the attempt: https://pastebin.com/cyf6YjKi
The interesting line - which might also explain this issue - is:
qt.network.ssl: Incompatible version of OpenSSL
[planetmaker:~/Downloads/ryzom_installer_linux] [base] 15s $ openssl version
OpenSSL 1.1.1d FIPS 10 Sep 2019
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