I've been running calyx for about the same time as you & will probably continue to use it on my daily driver. This one will be kept more 'clean'.

It's probably a little too early to make a call on the graphene. I can't imagine it being vastly different to calyx.

It doesn't come loaded with F-droid & Aurora - I had to install them manually. There's a lot less shit installed by default. It's otherwise very similar in usability.