It does but not all that much.
I had a Classic II, so a very limited machine.
Not a "road apple" but a "compromised Mac":
https://lowendmac.com/1991/mac-classic-ii/
68030 on a 16-bit bus, max 10MB RAM, no expansion slots so nothing except SCSI.
So, I put 10MB in it, a bigger SCSI HDD, a SCSI Ethernet adaptor on the back, and built both OSes up from scratch.
MacOS 6.0.8 with all the extras: a menu bar clock, hierarchical Apple menu with modular Control Panel, MacTCP, etc.
And MacOS 7.6.1, which doesn't officially support the Classic II as it wants 12MB RAM minimum -- but I had RAMdoubler. OpenTalk, Netscape Navigator 3, Communicator 4, some early Internet Explorer, etc.
Honestly, there was little difference. It was usably quick on 7.6.1 and more stable. So many things that are extras on 6.0.8 are built in to 7.x that it doesn't need that much more disk or memory.
7.x did more, made it easier, and ran well.
But, as an example, on roughly 1MBs ADSL, it took about half an hour to render the top-left quarter of https://slashdot.org/.
Perfectly usable machine, could do email, FTP, Gopher, but forget it on the WWW on of the noughties (2000-2009).
I would love to play with a hundreds-of-megaHertz class emulated classic 68K Mac on a Raspberry Pi! :-)
The PiStorm delivered this on a lot of classic Amigas.
After I wrote about it in 2024:
https://www.theregister.com/on-prem/2024/02/12/pistorm-turbo...
... Some people told me that everyone they knew still running classic Amigas had PiStorms in them. It is a cheap upgrade and it's apparently become ubiquitous.
As such, it's odd, but I don't know of fully-working versions for classic Atari ST or 68k Mac hardware.
There are 2 all-FOSS recreated ST OSes I know of now: AFROS, by the team behind ARANYM, and the formerly-commercial MagiX. It shouldn't be that much of an effort to make some bare-metal emulation that can run that on a Raspberry Pi.
Classic MacOS remains proprietary. Some of the comments in this thread hint at why -- that quite a bit of original Finder code at least made it into OS X. Pity. I'd hope that some day Apple might release whatever source it still has.
I'd love a community Copland to play with. :-D
I highly doubt this will ever happen. It seems like Apple is trying to avoid any association at all with classic Mac OS, even to the point of declining to go after folks hosting system software or ROM images, or even leaked ROM source code... on GitHub!
Even in the case of QuickDraw, whose source was published by the Computer History Museum, it's under a non-free license — so it wasn't quite released, but merely exhibited. (If you're unclear on the difference, ask any resident of a zoo.)
In the meantime, my own work-in-progress reimplementation of Mac OS is dual-licensed AGPL/commercial. The goal is to run classic Mac applications on commodity hardware.
Gopher://typed-hole.org it's fine too.
It's also available for both 68k and PPC architectures. And the PPC version can run 68k software (it internally emulates a 68020)
I've a wild whim to try this with Windows 95. What's an x11 or wayland? we're going EXPLORER.EXE!
Skins and theming only gets it so far, I want it to actually be the Win95 front end with Linux underpinnings.