Fab has been absolutely horrendous.

I think I speak for a majority of Unreal users that have had nothing but problems with switching to Fab, in that the transition from the Unreal Marketplace has caused nothing but problems to our workflows, revenue, and general usability. I made a video covering the big issues that Fab has caused. I think this is a genuinely unacceptable decision from Epic to release Fab in such a botched state.
Unreal Engine’s New Marketplace is AWFUL