One example, Chuwi Larkbox X: https://www.aliexpress.com/item/1005005715207156.html

This one is cheaper, but lower spec and no-name: https://www.aliexpress.com/item/1005005234838380.html

You can find Intel N100 mini PCs for 100-200 Euros that have similar performance to a 6th gen i5 but much lower power consumption and better codec support including AV1. The i3-N300 is also starting to become available with twice as many cores.