The SX may have been slower, but it could still run all 386 software which was a huge advantage over the 286. I had a 16MHz 286 and I so badly wanted a 386SX 16Mhz so I could run 32-bit software.
Superseding a ZX-Spectrum, luckily my first PC was a Siemens-Nixdorf 386-SX @ 16 Mhz, no FPU, with 2 Mb of RAM and a 40 Mb hard drive: https://www.ebay.com/itm/172038842293
I did install Windows on it briefly from what I recall but wasn't impressed, there wasn't much to do with it. Games would be pure DOS and for programming I'd use Borland Pascal so again DOS.
But as a gaming machine it ran anything I could throw at it at the time, which was 286-games actually. Without realizing I had the absolute best "286" machine I could have, for DOS gaming it is apparently much better to play them on a 386: (Why you don't want a vintage 286 PC -- but I like mine anyway): https://www.youtube.com/watch?v=Htbvm5_NZHc
