Somewhat, but only relevant when it comes to things like WebView but not other things. If there is a vulnerability elsewhere, your device on an older OS that th

Somewhat, but only relevant when it comes to things like WebView but not other things. If there is a vulnerability elsewhere, your device on an older OS that the manufacturer has stopped supporting will not get any patches. Google may think it's important to keep WebView always up to date with Play services. I couldn't care less. I still have to buy a new phone to get all updates.