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.
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.