I have an extremely moderately priced Pakedge Switch that I'll probably never part ways with. If an individual wants to spent 10K or more on a damned switch, be my quest.
Testing Ethernet switch
If you have bought an "audio" Ethernet switch, don't bother with this thread
If you question Ethernet switches, here is one test of one brand.
Search You-Tube Linus Tech Tips Aqvox
https://www.youtube.com/watch?v=NMFQ3YvR3Eo&t=914s