Yes, you will get 100/1000 Mbps speed between devices on the switch, but speeds to the router will be limited by the router’s port. The switch itself doesn’t limit the speed between the desktop and other local devices on the switch, as long as all connected devices and the cable are capable. However, the total bandwidth between the switch and the router is now a potential bottleneck if multiple devices are all using a lot of internet bandwidth simultaneously.
(That was easy, just ask AI. LOL)
Whose AI did you ask? Brave Browser farted out on me (see above)>
In any event, that makes sense, and, as I explained, the router speed is not an issue, really, as long as I have this little “leg” of the network operating quicker. I need to expand the network slightly anyway, so, I figured why not go this direction & just add a quick switch. They are cheap!