You should definitely not be pushing anyone to Safari. Apple's monopoly on browser engines on iOS gives them veto power on all web standards since iOS uses have no alternate browser engines (like Firefox)

Blink based users (Chrome, new Edge) are 2/3 users.

WebKit based users (Safari, GNOME Web) are 1/10 users.

Gecko based users (Firefox) are 1/25 users.

Opera and Edge are neglible slivers of Blink's market share. IE and old Edge are dead.

Part of the issue is that most browsers other than Firefox at this point use the Chromium engine [0]. Using a browser that uses a different engine from Firefox and Chromiums would be most ideal, since that would put even more value on the use of the real standards, and not what the market leader implements.

[0] https://en.wikipedia.org/wiki/Chromium_(web_browser)#Browser...