Hello,
To help easily cleaning up the inbox from deprecated messages, I mean not junk ones but those which are no longer relevant, probably because more recent emails have been received, and reduce the environmental impact of storing useless emails, I'd suggest to add a "filter for similar" as button or context menu item. So, whenever you receive a new email, you can take this opportunity to easily filter then delete the deprecated ones from the same sender.
Today I fill up the quick filter manually but I think that a button is handier.