Google Translate is a friendly feature available on the Chrome browser. Since Google Chrome is the product of Google, the app comes pre-installed on Android phones. Many users are getting used to it browsing news and articles on daily basis. Chrome offers translation suggestions to read the pages in different languages.
Google Translate supports more than 140 languages. When you read a page that is written in a language you don't understand, Chrome helps you to translate the page. On Android, the translation suggestion appears at the bottom of the screen.
If you do not need to translate the page to some other language, it is not needed to show the suggestion whenever you browse different pages. It eats a little space on your mobile screen that might annoy users. It is recommended to turn off this feature if not used.
On the PC version, this may not be the case. Since the screen is big, it will not affect the user experience. As discussed above, translation suggestion affects the user experience on chrome for Android.