Rather than speculating how titles translate across work cultures, can you elaborate on what your own responsibilities and strengths have been as a Solution Architect in these recent roles?
That should enable people here to share what titles have fulfilled those responsibilities in their orgs.
Edited to add: I will mention that many early/small startups expect their CTO to take responsibility for most significant technical direction and architecture, and lesser but still non-trivial architectural responsibility gets handed down to daily grind developers. It can take some growth before there's room for an intermediate role that focuses specifically on architecture.