I found a workaround solutoin, use this extention to disable ctrl + s:
https://chrome.google.com/webstore/detail/disable-keyboard-shortcut/aidbmcboeighgdnilpdljbedbbiocphj?hl=en
Bump as well.
I recently got back to using Evernote, web version has this ctrl + s problem that's very annoying. The browser ctrl + s can be overriden for sure, gmaili, google doc all overrides it. Thanks.