[ncmncm]

It has been decades since I had to provide extra drivers to a Debian install.

It is true that the first-presented installer ISO images on Debian's downloads page lack the worst proprietary drivers, but another couple of clicks takes you to images with them included. So, worst case, you find that the image you have lacks such a needed driver, and you use another image. In practice, I just start with the latter, and have not encountered hardware not covered. For the absolute newest equipment, a "testing" installer may be the right version to use.

The Debian download pages provide installer images for all needs. I have not needed to look at secondary sites, which also exist for specialized needs.