If your into Linux and a decent admin. Nothing is better than neomutt. Add not much.

Filtering and searching is faster than Google on gigs of mail.

It will take a long time to configure it well. But it’s worth it. I rarely change the config.

I have been using Linux since 1992.

No by your logic it’d zero percent.

Efficiency is against a goal. You can’t change goal post and make argument. Good try.

Draw a force diagram. Then bing perpetual machines.