there is actually no cheats option, like that person in that thread claimed. some now closed thread claimed there were a “cheats” in the emulation tab, but there isn’t.
In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.
Citra doesn’t support cheats currently. it had some implementation in the past, but no longer.