Maybe that's it but whenever I've been in hiring rounds for dev roles and seen someone operating solo the story I see on their resume tends to look like they are solo because they were fired or otherwise couldn't make it in the corporate world so they tried to go solo, failed again and are trying to go back to the corporate world. That doesn't bode well.
If I see someone got a real company going with a real developed product or service and a couple employees and that failed that is an entirely different story, that is hire material. I understand most companies won't make it but the number of 'CEO' titles I've seen on resumes running a single owner LLC just makes me chuckle to myself.
Founder or owner I think are the best. President is fine if you have a a couple employees, CEO I'd even be totally fine with for a small company, it just approaches cringy in my book when its founders using a corporate title that usually implies a larger organizational structure and it is really just them (a single person/no employee company).
If I see someone got a real company going with a real developed product or service and a couple employees and that failed that is an entirely different story, that is hire material. I understand most companies won't make it but the number of 'CEO' titles I've seen on resumes running a single owner LLC just makes me chuckle to myself.