Answer:
No, it isn't. In RFEM 5 and RSTAB 8, the National Annex DIN EN 1998‑1/NA:2011‑01 is available. You can recognize this in the settings for a seismic zone or in the features of the add-on module.
The National Annex DIN EN 1998‑1/NA:2021‑07 can be found in RFEM‑6 or RSTAB 9, where you can export it as described in FAQ 005181 and import it into RFEM 5 / RSTAB 8.
