I'm describing how I experienced it as a young developer at the time. It was a weird combination.
Note in particular that a lot of people who jumped on the open source bandwagon were people who wrote some free software but did NOT want to only write free software. And there was a lot of messaging around social norms for how projects worked, why open source made sense, and how to do well by it.
If you're going to bring up the origins of "Open Source", the above is NOT CORRECT.
It began as a marketing term for "Free Software" principles, as it was realised the FSF marketing wasn't convincing people in corporate environments.
From Wikipedia (I think this is accurate):
>> Netscape's act prompted Raymond and others to look into how to bring free software principles and benefits to the commercial-software industry. They concluded that FSF's social activism was not appealing to companies like Netscape, and looked for a way to rebrand the free software movement to emphasize the business potential of the sharing of source code.[35]
Not as a marketing term for Bazaar principles, despite ESR's involvement in both around the same time. Obviously the Bazaar paper added significant inspiration to the movement and to many projects, and informs some people's expectations around Open Source. But I have heard ESR talk about the origins of "Open Source" and it was quite clearly because "Free Software" wasn't getting the message across; the latter was too ethics focused for the corporates.
Btw, you can have Open Source without a Bazaar, and you can have Bazaar-style development without Open Source too (a lot of companies do so without giving it that name).