Battery life is my primary concern, and unless they release battery life benchmarks I’d be hard pressed to switch off of Safari.
The only two things I'm missing in safari to be hones are:
- A no-script extension or similar.
- Sync part of my work is on a no macOS machines I don't have safari there, so no sync. I partially overcome this with bookmaster for bookmarks, but I still missing tabs and read it later list. However, firefox doesn't have this later feature on desktop —and I don't why.