Venn diagram of the 195 candidates that are in the VCS sample and that lie in the eROSITA-DE sky. The groups are objects with BEL detections (purple); objects classified as AGN (Seyfert or LINER) in at least two BPT diagrams (green); objects with X-ray counterparts (red); and the intersections. “AGN variability only” refers to the candidates in the eROSITA-DE sky falling outside the three mentioned groups.