Before the (brain-damaged) craze to get everything on wireless, a "Network" printer was one that could be connected to your Network via Ethernet and made available to every station on the network. These are still the only "real" printers suitable for a non-trivial office environment.
These printers support long-lived Network-based protocols and do their imaging in the Printer with Postscript or PCL page-description language. They used to be far more expensive, because of the software and because you needed a processor in the Printer. Both of those pinch-points have eased considerably.
These printers are still readily available, but seem relatively expensive unless you have the wisdom to look at life-cycle cost.
Here is a web site that sells almost only such laser Printers, including well-known brands like HP, Xerox, and Lexmark, and lesser known brands like Kyocera:
https://www.printershowcase.com
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What has changed for the worse is that disposable inkjet printers have become plentiful and cheap, reducing expectations of the cost of a Printer. Their life-cycle costs are still very high, because the ink is frighteningly expensive per impression. and the cartridges dry out in a very short time, requiring expensive replacements for no reason other than lack of frequent use.