Safari displays an "all tabs" view when zooming out at 100% zoom (kinda mobile-esque), making Chrome's method is the smoothest in my experience. It's just done so well.
Firefox (dev edition, at least) contains some 'pinch' settings in it's about:config prefs that enable a somewhat usable pinch-to-zoom. It's a bit clunky, broken on some sites, reflows content sometimes, and clicking or selecting text almost never works when zoomed in. But it's usable, and great to see it make it into the browser without needing an extension, even with it's caveats.
I'd love if Sublime Text or VS Code had this feature, but iirc anything even similar would be far off even with plugins/extensions.
Other than gestures... Tree-Style tabs is the absolute killer 'feature' for me. Vertical tabs are amazing.