From the Docs link available at the bottom right of any lemmy page, in “4. Votes and Ranking” :
- Active (default): Calculates a rank based on the score and time of the latest comment, with decay over time
- Hot: Like active, but uses time when the post was published
It is, but it already has all the services that most would use with big QoL features compared to Redirector. Namely quickly adding and removing instances, and quickly enabling and disabling redireciton for specific services. And is a lot easier to use in general especially for people who don’t know regex.
Plus Libredirect has a few features that redirector doesn’t, the ability to redirect to multiple different instances, and the ability to redirect embedded content such as any embedded youtube videos on any other website.
But as you said, redirector is more flexible if you need it for something other than the ~20 services that LibRedirect handles.