If you just unboxed a fresh HP t630, or bought a used one off eBay for a home lab, you might be tempted to grab every driver from HP’s support page.
The AMD GPU and Realtek NIC are in the mainline kernel (5.15+). Just install and go. hp t630 thin client drivers
The HP t630 Thin Client Driver Guide: What You Actually Need (And Where to Skip the Bloat) If you just unboxed a fresh HP t630,