How can I remove icons from my iPhone mail list?

I had them on an iPhone 12. It came with the last update.

If you employ software engineers they can only justify their existence by keeping idea flowing, wanted or not.

Thank you. I hate the upgrades. Took me over an hour to get to your solution. Worked perfectly.

Eliminated categories, but icons in the header are unnecessary, annoying, and add visual clutter.

how to eliminate icons in the header?

The fix works on my iPhone 14 Pro Max. I don't know what else to suggest...