Not for a lot of use cases, like how to get 4G/5G cellular connectivity, how to monitor something using an embedded/tiny camera and a small machine learning model, or how to build a little HMI device using a 4" touchscreen...

For basic homelab use cases, almost any computer is fine, but for IoT-style stuff especially, a Pi-focused will have a lot more hits, and the tutorials won't apply to any of the mini PCs.