They only mention tinnitus and not any other "severe" post-covid symptoms he may have had. Some people do not come out of covid the same, and experience issues months later.
People don’t become suicidal in a matter of a few days or weeks. I’ve seen family members and friends absolutely ripped apart by depression and anxiety. They’ve suffered for YEARS and the COVID lockdowns have given them nothing to look forward to, nothing to run to for help. It’s wall-to-wall fear.
I had a best friend, a Marine who saw 5 TOURS of duty. Squad members wiped out. Survivors guilt like you read about it psychology texts. He suffered from tinnitus from a decade of war fighting. When he took his life, it was from despondence. From being surrounded by death. Tinnitus was never mentioned as anything but an inconvenience.
This man was already depressed. He was already dealing with demons. Tinnitus didn’t push him to suicide.
Bottom line is, who knows?