This used to be a real problem but it seems to be mostly resolved but if you can’t find an important Gmail email, you might want to use the web client to do another search. The one drawback that people complain about is that Apple Mail’s search feature doesn’t work that well with Gmail. You can filter mail from specific people, unread messages, read, messages, you name it, in order to work efficiently. Apple Mail is a standard email client but it does have a notable mail filtering feature enabling you to filter mail based on criteria of your choice.
