If traveling economy, consider pay-per-use Frankfurt lounges in Terminal 2; they provide essentials like snacks, drinks
https://edgarhtnu783.raidersfanteamshop.com/best-frankfurt-airport-lounges-for-long-haul-travelers
If traveling economy, consider pay-per-use Frankfurt lounges in Terminal 2; they provide essentials like snacks, drinks, Wi-Fi, and showers.