> material icons are overused
This is kind of a funny sentiment to me. I get that styles change, and that an interface can look dated with an old theme or old icons. Aqua looks out of place on a current Mac (although I kind of miss it), Aero looks out of place on Windows 10, etc.
Personally, I get a little annoyed when icons change. KeePassXC changed their icons a couple of months ago, and I still feel like I need to hover for a tooltip to confirm what this cryptic outline signifies.
I guess I just like the idea of a consistent design language, so overuse away!