There are about 15,000 active routing nodes on the Lightning Network right now. Over 50% of the entire network runs on node-in-a-box software like Umbrel, RaspiBlitz, and MyNode. And what hardware do you think 99% of those OS builds are explicitly designed for? Raspberry Pis.
The massive corporate liquidity hubs (like Kraken or ACINQ) run on enterprise servers, sure. But the actual decentralized routing mesh of the Lightning Network is literally held together by thousands of people running Pi 4s and Pi 5s.