The Lenovo mini PC is just over a year old and it's already just a fraction of its original launch price. The base configuration with a Core i3 CPU, 4 GB of RAM, and 128 GB SSD will be sufficient for most basic workloads and HTPC setups.
https://www.notebookcheck.net/Fanless-Lenovo-ThinkCentre-M90n-IoT-Mini-PC-is-at-its-cheapest-ever-right-now-for-200-USD.512482.0.html
No need to panic on HDMI output. Lenovo supplies a USB-C to HDMI dongle if Display Port isn't your thing. The C port on 1 side supports Alt Mode video for the dongle. The other USB ports are all 10Gbps rated. The AMD Zen version is a 6W with Vega 3 graphics and is more in line with a Pi4 in performance. The Intel version has the dual LAN ports along with the Intel WiFi. AMD only has a single LAN. Both the Intel and AMD versions have an open LTE card/SIM card slot on the inside.
Wonderful to have a tiny, completely silent PC connected to your big screen TV. We use the Lenovo wireless bluetooth keyboard with the indispensable trackpoint. This little guy works great for Zoom but I don't think it is fast enough for a virtual background. Not a big deal.
There are much better options based on AMD chips, fully upgradable and with less limitations. I am not putting any links there (don't want to view my post as advertising as I do not have anything to do with the companies making them), but you can easily find them. Price is similar.
With those dual ethernet ports this could be a great little PFSense router/firewall. Very interesting at that price.