Yes, I think so. Intel produced companion/support chips specially for the 80386 processor.
Similar to how it made them for the 8080 processor.

However, they're not especially designed to make an IBM PC/AT compatible PC in particular, even though they can be used for this purpose.

The 80386 rather was a "mainframe on a chip" and not designed as a PC processor.
Compaq was the company who made an AT PC on a 386 basis.

Which IBM didn't like, by the way.
Because, at the time (mid 80s), the PC/MS-DOS platform was seen as a dead end.

Processors like the Motorola 68000 or some RISC designs were seen as the future.

OS/2 also was beeing hyped, still, even though it was stil in its infancy.
Things like "family API" were made to ensure backwards compatibility with deprecated MS-DOS..

I know, this sounds strange, but in the mid/late 1980s,
MS-DOS was already was seen as obsolete before DOS 4/5/6 even existed.

In the early 1990s, such a mindset was unthinkable. Windows 3.0/DOS 5 were almost everywhere.

Edit: The othet ceramic chip might be an i82385 cache controller, not sure.

a bunch of PAL/GAL chips

rasz_pl wrote on 2022-11-01, 15:31:

a bunch of PAL/GAL chips

That'd be good for a DIY clone.