TLDR; yes, it is possible to add an SSD to a 2011 27" iMac without going through too much hoopla. Between everyone having issues finding parts, non-workable guides (due to parts), and general ...
If you’ve been waiting on a new 27-inch to upgrade your desktop setup, maybe consider the new 24-inch iMac or a Mac Studio instead. Despite reports to the contrary, Apple this morning said it won’t be ...