Yes, my first job we have 3-5 devs at some points. We each had our own codebase (internal site, external site, console/windows apps). We never touched each others' code.

Nobody ever set up source control for the code I had to work on and nobody but me ever worked on it, the others did have source control as far as I know and at least one had 2 people working at a time. We did try to get my using it but it was clunky and didn't last long since it was just me using it.

It seems so strange in hindsight but that whole place was so so different from where I am now.