Low end in 1992 would have been a 386, which might still have been capable of playing DooM, albeit with the window size reduced and if you were lucky enough to get 4MB of RAM on that box. Low end boxes might still only come with 640k.
As well as WordPerfect, Lotus 123, Quattro Pro, QBASIC, Turbo Pascal, Turbo C, dBase, Clipper, etc.
Also, Windows 3.1.
A low end box then would still have been a 286, or a 386SX at a low clock speed, if going with Intel, but at that point AMD were releasing 386DX-40 which from a price/performance perspective made it a big winner in the mid-level processor market vs the still quite new (and more handicapped versions, like SX at 20/25MHz) 486, plus motherboards were a thing, far less commodity-like than today. In those days even having a CD drive was a big deal, and higher clocked 486DXs were pretty pricey.
Low end of the sales offers (even though I guess you could still buy a bit lower too), but not low of end of the installed base, which was probably predominantly 286.
The very first PC/AT was at most 3 years old at that point & still worth a couple grand. Any 286 would be at least mid-range, as a 386 would probably still cost high 4-figures $.
My boss at the time told me they paid $10k for that computer when it was new & the equipment it controlled would cost $1-2m to replace (I want to say it was a microspectrophotometer but my memory is blurry), so they had to keep that 386 around & in working order. Luckily these were apparently very reliable computers.
Okay, but that's not representative. 80286 maximum sales period just started in 87 and lasted until 90.
In 87 at my place, in homes (I am not talking about the office world), everybody I knew (the ones who owned a computer, that is) was still using non-PC 8-bit computers (in the 1 to 4 MHz range). Then a bit later there would be the start of the non-PC 16-bits (Atari/Amiga) era (skipped by many) during which PCs were still more expensive and er... uncool, and only after that the PC started overtaking the non-PC into homes.