Dont know if my system in sig qualifies, but I have been running this hobby project of mine since covid days with a few machines of the generation that I tried. I ended up setting up quadripple booting into Windows 10, Windows 98SE (DOS only and proper), FreeDOS and Ubuntu (the latter as my rescue option).
While I tried some "later" Sierra games in Windows 98 the primary interest here are DOS games of 1993-1999 period, and I can run most of my childhood games at the moment, with only some posing issues (e.g. earlier games like Chaos Engine or more capricious ones like Arena or Daggerfall).
Talking about Windows 98 performance, it's absolutely lovely. My house Eternity Engine fork takes less than 30 seconds to compile from clean, and WAD-s like Ancient Aliens, Avactor, Eviternity (I) load without noticeable delays. I am actually not cross compiling and mostly writing code for that source port while in Windows 98, and only go back to Windows 10 when I want to "stress test" it with DOSBox stricter memory management, or need screen capture or DOSBox debugger.
I have almost completely switched to FreeDOS and VSBHDA these days however, for the SB16 emulated sound in games.
And I use the same PC for everything else (as in modern web or tax return filing), only in Windows 10.
GA-G41M-Combo G41/ICH7 - Core 2 Quad Q9550 - DDR3 1033 - Radeon RX570 - CMI-8738 (Leadtek WinFast 4x) - X3MB (Buran)
Beetle/M/i815+ICH2 - Celeron 566Mhz - Opti 924 (Typhoon Media)