Rereading, I think I went pedantic about nothing! (I didn’t mean to be pedantic at all, I plead morning before coffee?)
I had 1992 fixated in my head, but indeed at that time, “1992” versus “1993” is a big deal, and even “late 1992” versus “mid 1993” versus “late 1993”!
The reason I have these late 1992 values fixed in my head is that my first close contact with the PC platform came in late 1992, in the form of a 486 DX/50 with 8 MB of RAM and 100 MB of hard disk, which, along with a Paradise VGA adapter, 14" monitor, and dot matrix printer, was about $2,000. I have recently reconstructed the pricing and configuration of that system for personal reasons, so “1992” and “DX2/66, 32 MB, 320 MB” seemed like a lot for $1000! I see now, however, that you didn’t pinpoint a date, the August 1992 that I saw was in the quoted article above.
My first Linux was on that same DX/50 (and indeed the previously mentioned 1x CD-ROM was installed in it), but in late 1994. It came off an Info Magic CD set, and was (I believe) Slackware 2.0; the CD set also had Debian, Red Hat, and the Yggdrasil from the article above, but due to my floppy disk limitations I installed Slack.
It also had an interesting Slack install using “UMSDOS”, which was a filesystem that mapped POSIX sematics onto MS-DOS disks, so you could unzip Slack into a directory, run some batch file that loaded Linux from DOS (I seem to recall that it used LINLOAD.EXE?), and be off to the races without re-partitioning. Unlike VFAT (which came not so long later), the files were not necessarily in a recognizable structure. I seem to recall that some directory names were recognizable, but that many files had names like UMS00001.DAT or something similar, and the driver must have used some metadata stored alongside to map the information to POSIX filenames and permissions.
I do very much think that that early-to-mid-90s time frame is the time frame that put “workstations” on notice that the PC world was coming for them. The 386 might have started it, but I think that the 486 DX, in particular, with its on-board FPU and full 32-bit system bus, was a level of competition that the workstation market had not previously experienced. The rise of Linux provided the operating system to challenge their capabilities (and FreeBSD was well on its way, as well).