My anecdata of one: As an employer/founder, I wouldn't hold a short stint on your job history against you. I'd give it an equal chance of being a poor employer

My anecdata of one: As an employer/founder, I wouldn't hold a short stint on your job history against you. I'd give it an equal chance of being a poor employer vs. you not working out. Would likely just ask you about it in an interview. If it were a few short stints in a row, then that might give me pause. But in my experience, this situation is more common than you'd think and any good employer/recruiter is going to be able to look past it. Would you want to go back to your previous job? It's possible they might want you back if you left on good terms. Would be easier, cheaper, and faster for them than backfilling your position.