Just an FYI, since several users are posting about these issues on the Google Chrome help forum:

Issue #1:

After installing the Creators Update, my extension icons mysteriously disappeared and Chrome would lock up if I tried to install/uninstall/reinstall any extension.

I finally found the solution to this one - in Chrome, go to Settings/Advanced Settings/System and uncheck the box to enable hardware acceleration.

Issue #2:

The Chrome uninstall via Control Panel or Windows 10 Settings just places a Chrome icon on the taskbar (if you mouse over the icon, it says 'Uninstalling Chrome') then appears to freeze.

The same thing happens uninstalling Chromium and other Chromium-based browsers (I personally confirmed Opera and Vivaldi).