If you need more inspiration, I used to use Pegasus Mail, and I'd have a small number of filters on Inbox open: there were some lists I was on that didn't need to ever be in the inbox, and most of my filters on Inbox close: move read or timed out mail into folders it belonged; read mail with no other rule would end up in Archive/YYYY-qQ; I found quarterly was the best granularity, monthly archive folders were too fiddly. But modal flow like that isn't very current.

Pegasus Mail was very good when it owned the mail (pop3), and works ok with a competent IMAP server, but work switched to Exchange and it was very slow, and Pegasus didn't work well with a slow IMAP server. That was the start of my slide into inbox 40k :(