As a solo developer, I rarely struggle to remember what changed yesterday. I often struggle to remember why I made a decision six months ago.
Conventional commits are most valuable to me as historical context rather than as a release-management tool.
The larger the project becomes, the more useful that context gets.
That information should still be in the commit messages. "No functional change intended." appears widely in FreeBSD commit logs when code is being refactored (or, rarely, restyled).
And the issue isn't whether you can remember what you changed yesterday; this is largely about making sure other developers can quickly identify relevant commits. If you're a solo non-OSS developer, this is entirely relevant to you.
This sounds like what regular commit messages do. How are conventional commits specifically helpful?