Amusingly(?), pinned tabs being in all windows is one of the most annoying things to me about Safari. I use them in Firefox/Chrome to signal that they're tabs

Amusingly(?), pinned tabs being in all windows is one of the most annoying things to me about Safari. I use them in Firefox/Chrome to signal that they're tabs I definitely want to always keep open, and which I expect to open a lot of other tabs from. It's a whole different use case from wanting them available on every window.