There are plenty of underpowered mini PCs on the market. The MINISFORUM HX90G is a tiny PC with an AMD Ryzen 9 5900HX processor. It has a 8-core processor with 32GB RAM, 512GB of SSD and AMD Radeon RX 6600M discrete graphics.
The HX90G has two HDMI ports and two DisplayPorts that let you connect four displays. It runs Windows 11 pro. The machine has 7 heat pipes to stay cool as you get work done. You can find out more about it here.