It would appear to be possible - except for one possible problem. There are many reports of about 60-80mbps WiFi connections after upgrading to Android 10, and that may affect the Ethernet connection also. (And Samsung is known for putting a "stop loss" at an upgrade, so you can't downgrade.) I'd keep it at 9 (which may mean rooting if they don't fix the problem soon) until Samsung fixes that bug. (Or you may be stuck at much lower speed.)