There are some proprietary Chrome APIs but if you’re not using those it’s been pretty rare to have major problems in recent years. I open a couple of bug report

There are some proprietary Chrome APIs but if you’re not using those it’s been pretty rare to have major problems in recent years. I open a couple of bug reports a year against Chrome, Firefox, and Safari—mostly accessibility related—but most of the time it’s been a problem with code written specifically against Chrome rather than code which couldn’t work in the other browsers.