We thought about it for a long time and ultimately decided on a female architect and have not regretted it for a second so far. I consider the fixed price with the developer to be a rumor, because there will always be later changes, and with building by architects I at least have unit prices that are understandable, so that you can nicely calculate what a change costs. Also, the tenders are much more detailed than most construction service descriptions.
In addition, the house has become very individual and has nothing to do anymore with the floor plans that we drew or copied. That was also a surprise for us back then, but a very pleasant one.