How to mark reminders as "Done" without going via Google Calendar?
I have recently discovered you can "Mark as Done" a reminder in the Google app by swiping right on the reminder itself:



Note that this is only in the app, not on the notification.

HOWEVER, if you swipe a "recurring" reminder to "Mark as Done", it will mark all future reminders as done also! This is certainly a problem for me, as I have several recurring reminders and I only want to mark the "current" one as done.