Yes, Accrescent is awesome in theory, and has potential, but at current maturity level (those 39 apps) you're most likely going to have to install additional apps outside of Accrescent.
Many, myself included, use Obtainium for this. There are separate threads on this here on the forum.
Basically, you can get any app you want on GrapheneOS. Most will run (exception being some poorly designed banking apps).
You won't regret the switchover, regardless of Accrescent's current underwhelming variety. Go for it.