Background:
OS: Kubuntu 24.04 LTS
Itch app: 26.1.9
After the installation is complete (No error messages appeared during installation.), the application does not launch, and the console displays the generic error message when attempting to run the application from the shortcut:
Kernel should support SUID sandboxing, leaving it enabled
App launched, getting out of the way
When running the binary inside the app-26.1.9/ directory, the error message is different and points to the real cause:
[7564:0925/222421.739574:FATAL:setuid_sandbox_host.cc(157)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /home/user/.itch/app-26.1.9/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap (core dumped)
Manually changing the "chrome-sandbox" file owner and permissions resolves the problem.