Google has recently announced that Gmail's right-click functionality update will expire in February 2019.
Gmail's right-click menu is not particularly useful at this time as it provides just a few options. At this time, only the options provided are delete, archive, unmarked, and move to the tab.
Gmail users have to choose emails and wait for other options to appear at the top of the screen to activate them. Frequently used actions such as reply or referral, snooze or tag are only there.
Google announced the change in the G Suite Updates blog. The update will be distributed to all Gmail Gmail users and will be enabled by default. There is no word about whether it will land for Gmail users for free, but it seems likely to happen.
Right click on an email after the update reaches your account:
Gmail: Improved right-click menu
Now : Do you use the Gmail web interface?