As RFA is an older non-strategic APIs it is usually later to be qualified with newer OS versions.
At present, the estimates for RHEL8 are November 2021 for RFA C++ 8.2 and October 2021 for RFA Java 8.2
RFA C++ 8.2: Which of the Linux release lib files should be used with RHEL 7.9?
Bad directory data with multiple clients
Is there a planed obsolescence for the RFA C++ 7.4 and 7.5 version?
Building RFA based application with gcc-8.2.0 (c++17 standard)
Enumerator object for values requested for fields: PRIMACT_TP ( 270 ) / SC_ACT_TP1 ( 280 )