Except gmail pretty unexplicably filtered away stuff like a direct response from my boss, to an email I specifically sent to him half an hour ago. After a couple of these hiccups, plus hours spent trying to locate emails that I knew existed and even knew the right keywords for, I just disabled any and all of their filtering (which is, unsurprisingly, not just a checkbox...) and access gmail exclusively through Thunderbird.

It's inexplicable to me how google, of all companies, can be so consistently shit at search across all their products.