Snow Leopard was tongue in cheek as it comes up among OSX fans as the best OS made.
To your point, there are plenty newer MacOS versions that might still suit ones taste, still run 32 bit apps, and still get patched.
There are plenty alternatives to surfing Safari. Heck, you can even get modern Firefox compiled for Power Macintosh G3, G4, or G5 (not for Lion 10.7 or newer, which dropped Power Mac support): https://www.floodgap.com/software/tenfourfox/
iCab (at icab.de) is another labor of love, though release notes look like 2018.
Note, TenFourFox isn't quite "modern Firefox", it's a fork of an old version with backported fixes and improvements. And on Snow Leopard (which only supports Intel), you'd want to use Arctic Fox instead: https://github.com/wicknix/Arctic-Fox.
> To your point, there are plenty newer MacOS versions that might still suit ones taste, still run 32 bit apps, and still get patched.
Where "plenty" equals "two", sure. Apple releases security patches for the last three Mac releases. So, High Sierra has one year left, and Mojave has two years.
Because Snow Leopard is full of unpatched security holes. [0] Including RCEs.
[0] https://wyzguyscybersecurity.com/apple-patched-safari-and-os...