Are there any unritten rules for SBC’s which are sold in Switzerland?

From the SBC we studied: It stroke us that we found out these rules: 1. Raspberry computers only used on Ricardo Switzerland? 2. LattePandas in high quality shops? 3. Newly launched devices such as the Raspberry Pi zero w2 and the Orange Pi 5 only on Aliexpress without warranty? Are these the rules of dictators …