Sorry to give hope with regard to effects. Those have never been supported so I haven't relied on that workflow for years. I usually cut in FCP and finish in Resolve like the days before Resolve could edit. Usually stay away from plugins that only work in one app. LUTs are easy to reapply manually and the handful pf plugins I use work on both, but I don't even bother using them in FCP except for a rough preview. Duplicating the timeline and removing effects before moving to Resolve has been standard practice in my workflow.
Once you get used to doing it the old fashioned way it frees you up to use any editor ( Premiere, FCP ) and any finishing app ( Resolve, Scratch, Baselight, Nuke Studio ). Being tied to one app for everything can be convenient until the developer drops the ball ( Adobe ). Being handcuffed to an Adobe app is like being stuck on the Titanic.