This depends on what you want. If you want the most fingerprinting resistance, stay with RFP. If you want some fingerprinting protection but very little breakage/usability problems, disable RFP, which will use the default FPP RFPTargets.
The move to FPP is planned in multiple stages. First, users with RFP enabled will be moved to FPP +AllTargets, which provides the same protections as RFP but with better override options. Users who had RFP disabled will either keep the default RFPTargets or retain their previously selected RFPTargets.
Which RFPTargets we end up using has not been decided yet, since there are multiple options and opinions on what to use, and I can’t just overrule everyone and make my personal pick.