If you want to avoid the 'this chrome extension has been sold to a malicious actor' fiasco that hit me with the Great Suspender yesterday, you can load this as an unpacked extension.

Grab the zip from github, unzip it, and point chrome to it as an 'unpacked extension'. Works perfectly and takes 2 minutes.

The github is here https://github.com/tom-james-watson/old-reddit-redirect

You lose automatic update but that's a feature in this case.