I have an Asrock DESKMINI A300 with a Ryzen 5 3400g. I noticed that there is the newer Asrock DESKMINI X300 that supports Ryzen 4000 APUs and even looks better IMO. I
Amazon.com: E-ITX ASRock DeskMini X300 AMD Cezanne Ryzen 7 5700G Mini PC System, 64GB Memory, 1TB NVME SSD, W11 Pro Pre-Installed and Configured : Electronics
ASRock > DeskMini X300 Series
Ryzen 7 PRO 4750G in a DeskMini A300 - Cooling Upgrades using Delta Fans - YouTube
AMD Ryzen 7 PRO 4750G with ASRock DeskMini X300 ルノアール 幸福のAPU!
Ryzen 4750G ASRock Desk Mini Build - A Tiny APU Beast! - YouTube
The EVGA RTX 3070 FtW3 Ultra takes on the Reference RX 6800 and more