Back in the 90s, Macs were mostly used by the "tech nerds". Normal people ran windows 95/98. It's still kind of weird to me that Macs became sufficiently mainstream as to lose their tech nerd cred :)
I'd say Macs have a far greater association with developers and tech nerds now, most code was being written for Windows and Unix back then. I was in a Computer Science University program in the 90's, and our labs were full of Unix workstations, things like SGI and Sun. When the iMac dropped, they put them in the non-CS labs. On a personal level, I've always felt the relatively current Mac==developer trend is driven in large part by fashion, but I've never been a fan of the Apple/Mac ecosystem even though I can respect what the Mac is on an engineering level. So maybe I'm biased.
My memories are different. Macs were run by media guys for graphics, video and audio. Tech nerds used, sure Windows, DOS, but also Linux already, many types of Unixes, Netware, Commodore Amiga, Atari ST or Falcon. But Macs? No!