We still support running 32-bit applications in a ThinLinc session, even though the base system must be 64-bit. This causes extra work for us, so at some point we may want to remove that support. We removed support for the 32-bit server in bug 5308, and the 32-bit client in bug 7962.
RHEL 10 is apparently dropping support for 32-bit applications: > 32-bit packages have been removed in RHEL 10 > > Linking against 32-bit multilib packages has been removed. The *.i686 packages > remain supported for the life cycle of Red Hat Enterprise Linux 9. https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10-beta/html-single/10.0_beta_release_notes/index#removed-features-compilers-and-development-tools