Not what you're looking for, but my two cents anyway.
While I was using them with the M1 Mac Mini, they were excellent, at least for the 1080p 75Hz monitor I was using them for. Fortunately it was being used as a second monitor to a much larger 4K primary display. I will say that subjectively it sometimes felt like it was running at say, 40-50fps rather than at 75, especially if there was lots of motion, but I never did experience significant artifacts or anything that would have suggested it was not native.
This was after installing the proper drivers and all of its optional addons, and this led to a fairly "it just works" experience for me. Monitors showed up under Settings as monitors and didn't disconnect randomly or do anything that caused me to pay particular attention to them.
If anyone wants me to test them with something else, I still have them around, so maybe I can try it out if that would be helpful.
As for anyone looking for a DisplayLink dock, I would say these work pretty well. You can find them cheap on eBay if you like to do things like that.
Out of curiosity, do you notice anything out of the ordinary when using the DisplayLink monitor? I.e. mouse lag, compression artifacts, or anything else?